1,2-dihydropyridine compounds, manufacturing method thereof and use thereof

ABSTRACT

The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. 
     
       
         
         
             
             
         
       
     
     In the formula, Q indicates NH, O or S; and R 1 , R 2 , R 3 , R 4  and R 5  are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C 1-6  alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C 1-6  alkylene group etc.; and A indicates an optionally substituted C 6-14  aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Divisional of co-pending application Ser. No. 11/174,514 filed on Jul. 6, 2005, and for which priority is claimed under 35 U.S.C. § 120. Application Ser. No. 11/174,514 is a Divisional of application Ser. No. 10/296,719 filed on Nov. 26, 2002 and for which priority is claimed under 35 USC § 120. Application Ser. No. 10/296,719 is the national phase of PCT International Application No. PCT/JP01/04857 filed on Jun. 8, 2001 under 35 U.S.C. § 371. The entire contents of each of the above-identified applications are hereby incorporated by reference. This application also claims priority of Application No. 2000-175966 filed in Japan on Jun. 12, 2000 and Application No. 0022483.2 filed in the United Kingdom on Sep. 13, 2000 under 35 U.S.C. § 119; the entire contents of all are hereby incorporated by reference.

FIELD OF THE INVENTION

The present invention relates to a novel compound, a salt thereof and hydrates thereof, and to a method for manufacturing the same. More specifically, it relates to a pyridone compound, a salt thereof and hydrates thereof which are useful as inhibitors to non-NMDA receptors, particularly to AMPA receptor.

PRIOR ART

Glutamate and aspartate are important amino acids which participate in nerve functions such as recognition, memory, movement, respiration, cardiovascular adjustment and sensation and are called excitatory neurotransmitters as well. In the expression of their physiological activities, an interaction with a specific receptor is important and, generally, two types of receptors—an ion channel type and a G-protein coupled type—have been known. The former is further classified into N-methyl-D-aspartate (NMDA) receptor, α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor, kainate receptor, etc. On the other hand, the amino acid as an excitatory neurotransmitter has been known to induce neurotoxicity by, for example, abnormal excitation of central nerves. It has been noted that the said toxicity is as serious as being accompanied by the death of nerve cells causing various nervous diseases. Main nervous diseases which have been known are cerebral ischemia, head injury, spinal cord injury, Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis (ALS), Huntington's chorea, AIDS nervous disturbance, epilepsy, neurodegeneration observed after the state of hypoxia, mental disorder, mobility disturbance, pain, spasticity, nervous disturbance by toxin in food, various neurodegenerative diseases, various mental diseases, chronic pain, migraine, cancer pain and pain caused by diabetic nervous disturbance. They are serious diseases where many mechanisms of onset, etc. have not been clarified yet and pharmaceutical agents which are effective for the therapy have not been found yet but it is believed that they are closely related to excessive release/accumulation of excitatory neurotransmitters, changes in expressing pattern of receptors, etc. For example, it has been reported that glutamate concentration in cerebrospinal fluid and plasma increases in stroke, cerebral ischemia, head injury and spinal cord injury (Castillo, J., Dazalos, A. and Noya, M., Lancet, 1997, 346:79-83; etc.). There is a report that neuropathy occurs when glutamate, NMDA, AMPA, kainate, etc. are excessively applied to nerve cells (Meldrum, B., Brain Res. Reviews, 18, 293, 1993). There are reports that, in Alzheimer's disease, β-amyloid protein enhances the neurotoxicity of glutamate and that it promotes the release of glutamate (Arias, C., Arrieta, I. and Tapia, R., J. Neurosci. Res., 1995, 41:561-566; etc.). In the case of Parkinson's disease, there are reports that L-dopa hydroxide activates the AMPA receptor (Cha, J. J., et. al., Neurosci. Lett., 1991, 132:55-58) and enhances the neurotoxicity (Olney, J. W., et. al., 1990, 108:269-272; Rosenberg, P. A., et. al., Proc. Natl. Acad. Sci. USA, 1991, 88:4865-4869). There is another report that L-dopa promotes the generation of free radicals resulting in a rise of oxidative stress (Smith, T. S., et. al., Neuroreport, 1994, 5:1009-1011). In the case of Huntington's chorea, it is reported that a substance which inhibits the release of glutamate is effective in improving the symptoms. In the case of ALS, there are many reports showing the participation of glutamate in its pathology. There are some cases where the AIDS patients suffer from recognition nerve function deficiency and, even in such a nerve disease, participation of glutamate is suggested. For example, it is reported that gp 120 which is a glycoprotein in an envelope of HIV virus suppresses the uptake of glutamate by astrocytes (Dreyer, E. B., Eur. J. Neurosci., 1995, 7:2502-2507; Ushijima, H., et. al., Eur. J. Neurosci., 1995, 7:1353-1359) while a substance which inhibits the release of glutamate suppresses the neurodegeneration by gp 120 (Sindou, P., et. al., J. Neurosci. 1994, 126:133-137; Muller, W. E. G., et. al., Eur. J. Pharmacol. Molec. Pharmacol., 1992, 226:209-214; Lipton, S. A., Neurology, 1992, 42:1403-1405). With regard to allergic encephalomyelitis, there is a report that, in the mice where the said inflammation takes place, enzyme which decomposes glutamate incorporated from outside of cells is deficient (Hardin-Pouzet, H., Glia., 1997, 20:79-85). Olivopontocerebellar atrophy is a disease which is sometimes combined with Parkinson's disease and an antibody to GluR2 which is a subunit constituting the AMPA receptor has been found (Gahring, L. C., Neurology, 1997, 48:494-500) and the relation between olivopontocerebellar atrophy and AMPA receptor is suggested. With regard to a report for epilepsy, it is reported that, in the mice which are unable to construct the GluR2 in AMPA receptor, Ca²⁺ permeability of the AMPA receptor increases whereby it is apt to cause a sudden onset resulting in death (Brusa, R., Science, 1995, 270:1677-1680). Besides the above, it is reported that NBQX (2,3-dihydroxy-6-nitro-7-sulfamoylbenz[f]quinoxaline; Sheardown, et al., Science, 247, 571, 1990) and other inhibiting compounds to AMPA receptors have antianxiety and anticonvulsant action (J. Pharmacol. Exp. Ther., 260, 742, 1992; Pharmacol. Biochem. Behavior, 1998, 60:119-124) and there are also reports for the connection of AMPA receptor/kainate receptor with urinary disturbance, drug abuse, pain, etc. (J. Pharmacol. Exp. Ther., 280, 894-904, 1997; Neuroscience Letters, 268:127-130, 1999).

It can be expected that the substances showing an antagonistic action to excitatory neurotransmitter receptors are useful for the therapy of the above-mentioned nerve diseases. At present, the usefulness of the substances having an antagonistic action to non-NMDA receptors such as AMPA receptor and kainate receptor is particularly expected. For example, it is reported that inhibitors of the interaction of glutamate with the AMPA and/or kainate receptor complex are useful in treating demyelinating disorders such as encephalitis, acute disseminated encephalomyelitis, acute demyelinating polyneuropathy (Guillain Barre syndrome), chronic inflammatory demyelinating polyneuropathy, multiple sclerosis, Marchifava-Bignami disease, central pontine myelinolysis, Devic syndrome, Balo disease, HIV- or HTLV-myelopathy, progressive multifocal leucoencephalopathy, a secondary demyelinating disorder; for example, CNS lupus erythematodes, polyarteritis nodosa, Sjogren syndrome, sarcoidosis, isolated cerebral vasculitis, etc. as secondary demyelinating disorders, etc. in WO00/01376. With regard to the compound having an inhibitory action to AMPA receptor and kainate receptor, there are reports for the following compounds for example.

(1) Competitive AMPA receptor-inhibiting compounds represented by the following formulae.

(2) Non-competitive AMPA receptor-inhibiting compounds represented by the following formulae.

(3) Besides the above, there are reports on competitive AMPA receptor-inhibiting compounds having a quinoxalinedione skeleton in WO 94/25469, WO 96/10023, U.S. Pat. No. 5,356,902, etc. and there are reports on non-competitive AMPA receptor-inhibiting compounds in WO 95/01357, WO 97/28135, WO 97/18163, WO 97/43276, WO 97/34878, WO 98/38173, EP 802195, DE 19643037, etc.

On the other hand, with regard to 1,2-dihydropyridine compounds, there have been several reports for them such as the compounds represented by the formula

[in the formula, R is a hydrogen atom, a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group, a C₁₋₆ alkoxy group, etc.; V is CH or N; W is O or S; X is a phenyl group which is unsubstituted or substituted with one or more group(s) selected from a C₁₋₆ alkyl group, CF₃, a cyano group, a nitro group, halogen, etc. or an aromatic hetero group which is substituted with one or more group(s) selected from a C₁₋₆ alkyl group, CF₃, halogen, etc.; Y is a hydrogen atom, a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group, an aryl group, etc.; and Z is halogen, a C₃₋₆ cycloalkyl group, a C₁₋₆ alkylthio group, a C₂₋₆ alkenylthio group, an aryl group, etc.] or salts thereof as a ligand for GABA_(A)α subunit in WO 98/55480 and the compounds represented by the formula

[in the formula, n is 0, 1, 2, 3, 4 or 5; X is a hydrogen atom, a C₁₋₄ alkyl group, a C₁₋₄ alkoxy group, a trifluoromethyl group, a trifluoromethoxy group or halogen; A is an amino group, a C₁₋₄ alkylamino group, a C₁₋₄ dialkylamino group, a morpholino group, a piperidino group or a pyrrolidino group] useful for therapy of epilepsy in WO 00/07988 but their connection with AMPA receptor and kainate receptor has not been known at all.

As such, there has been a brisk demand for the compounds which inhibit AMPA receptor/kainate receptor and are useful as pharmaceutical agents. However, the compounds which exhibit an excellent inhibiting action to AMPA receptor and/or kainate receptor and are highly useful as pharmaceutical agents effectively acting in clinical field have not been found yet. Thus, an object of the present invention is to investigate and find a compound which inhibits AMPA receptor and/or kainate receptor which suppresses the neurotoxicity of excitatory neurotransmitters and achieves an excellent neuroprotective action as pharmaceutical agents being useful as therapeutic/preventing/improving agents for various nerve diseases.

DISCLOSURE OF THE INVENTION

Under such circumstances, the present inventors have carried out an intensive study and, as a result, they have succeeded in synthesizing a novel compound represented by the formula (I), a salt thereof or hydrates thereof, and have found an excellent method for producing the compound or a salt thereof, and useful intermediate in the method. Further, quite surprisingly, they have found that the above compound (I), a salt or hydrates thereof shows an excellent antagonistic action to AMPA receptor, whereupon the present invention has been accomplished.

A compound represented by the following formula, a salt thereof or hydrates thereof.

In the formula, Q indicates NH, O or S; and R¹, R², R³, R⁴ and R⁵ are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C₁₋₆ alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C₁₋₆ alkylene group an optionally substituted C₂₋₆ alkenylene group, an optionally substituted C₂₋₆ alkynylene group, —O—, —S—, —CO—, —SO—, —SO₂—, —N(R⁶)—, —N(R⁷)—CO—, —CO—N(R⁸)—, —N(R⁹)—CH₂—, —CH₂—N(R¹⁰)—, —CH₂—CO—, —CO—CH₂—, —N(R¹¹)—S(O)_(m)—, —S(O)_(n)—N(R¹²)—, —CH₂—S(O)_(p)—, —S(O)_(q)—CH₂—, —CH₂—O—, —O—CH₂—, —N(R¹³)—CO—N(R¹⁴)— or —N(R¹⁵)—CS—N(R¹⁶)— (wherein R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ indicate hydrogen atom, a C₁₋₆ alkyl group or a C₁₋₆ alkoxy group; and m, n, p and q indicates an integer of 0, 1 or 2 independently); and A indicates a C₃₋₈ cycloalkyl group, a C₃₋₈ cycloalkenyl group, a 5 to 14 membered non-aromatic heterocyclic group, a C₆₋₁₄ aromatic hydrocarbocyclic group, or a 5 to 14 membered aromatic heterocyclic group which may be substituted respectively, provided that 3 groups among R¹, R², R³, R⁴ and R⁵ are always the same as or different from each other and each indicates —X-A; and the residual 2 groups always indicate hydrogen atom, a halogen atom or a C₁₋₆ alkyl group), provided that in the above-mentioned definition, the cases where (1) Q is O; R¹ and R⁵ are hydrogen atoms; and R², R³ and R⁴ are phenyl groups, (2) Q is O; R¹ and R⁴ are hydrogen atoms; and R², R³ and R⁵ are phenyl groups, and (3) Q is O; R¹ and R² are hydrogen atoms; and R³, R⁴ and R⁵ are phenyl groups, are excluded.

That is, the present invention relates to (1) the compound represented by the above formula (I), a salt thereof or hydrates thereof; (2) the compound according to the above (1), a salt thereof or hydrates thereof, which is represented by the formula:

wherein Q indicates NH, O or S; X¹, X² and X³ are the same as or different from each other and each indicates a single bond, an optionally substituted C₁₋₆ alkylene group, an optionally substituted C₂₋₆ alkenylene group, an optionally substituted C₂₋₆ alkynylene group, —O—, —S—, —CO—, —SO—, —SO₂—, —N(R⁶)—, —N(R⁷)—CO—, —CO—N(R⁸)—, —N(R⁹)—CH₂—, —CH₂—N(R¹⁰)—, —CH₂—CO—, —CO—CH₂—, —N(R¹¹)—S(O)_(m)—, —S(O)_(n)—N(R¹²)—, —CH₂—S(O)_(p)—, —S(O)_(q)—CH₂—, —CH₂—O—, —O—CH₂—, —N(R¹³)—CO—N(R¹⁴)— or —N(R¹⁵)—CS—N(R¹⁶)— (wherein R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ indicate hydrogen atom, a C₁₋₆ alkyl group or a C₁₋₆ alkoxy group; and m, n, p and q are independent of each other and each indicates an integer of 0, 1 or 2); A¹, A² and A³ are the same as or different from each other and each indicates an optionally substituted C₃₋₈ cycloalkyl group, C₃₋₈ cycloalkenyl group, 5 to 14-membered non-aromatic heterocyclic group, C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14-membered aromatic heterocyclic group; and R¹⁷ and R¹⁸ are the same as or different from each other and each indicates hydrogen atom, a halogen atom or a C₁₋₆ alkyl group; (3) the compound according to the above (2), a salt thereof or hydrates thereof, wherein X¹, X² and X³ are (1) single bond, (2) a C₁₋₆ alkylene group, a C₂₋₆ alkenylene group or a C₂₋₆ alkynylene group which may be optionally substituted respectively with one or more groups selected from the following substituent group a, (3) —O—, (4) —S—, (5) —CO—, (6) —SO—, (7) —SO₂—, (8) —N(R⁶)—, (9) —N(R⁷)—CO—, (10) —CO—N(R⁸)—, (11) —N(R⁹)—CH₂—, (12) —CH₂—N(R¹⁰)—, (13) —CH₂—CO—, (14) —CO—CH₂—, (15) —N(R¹¹)—S(O)_(m)—, (16) —S(O)_(n)—N(R¹²)—, (17) —CH₂—S(O)_(p)—, (18) —S(O)_(q)—CH₂—, (19) —CH₂—O—, (20) —O—CH₂—, (21) —N(R¹³)—CO—N(R¹⁴)— or (22) —N(R¹⁵)—CS—N(R¹⁶)— (wherein R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶, m, n, p and q have the same meanings as defined in the above claim 1); and A¹, A² and A³ are a C₃₋₈ cycloalkyl group, a C₃₋₈ cycloalkenyl group, a 5- to 14-membered non-aromatic heterocyclic group, a C₆₋₁₄ aromatic hydrocarbocyclic group or a 5- to 14-membered aromatic heterocyclic group which may be optionally substituted with one or more groups selected from the following substituent group b (the substituent group a: the group consisting of hydroxy group, a halogen atom and nitrile group; and the substituent group b: the group consisting of (1) hydroxy group, (2) a halogen atom, (3) nitrile group, (4) nitro group, (5) a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group or a C₂₋₆ alkynyl group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, nitrile group, a halogen atom, a C₁₋₆ alkylamino group, a di-(C₁₋₆ alkyl) amino group, a C₂₋₆ alkenylamino group, a di(C₂₋₆ alkenylamino) group, a C₂₋₆ alkynylamino group, a di(C₂₋₆ alkynylamino) group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkenylamino group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkynylamino group, an N—C₂₋₆ alkenyl-N—C₂₋₆ alkynylamino group, an aralkyloxy group, a TBDMS oxy group, a C₁₋₆ alkylsulfonylamino group, a C₁₋₆ alkylcarbonyloxy group, a C₂₋₆ alkenylcarbonyloxy group, a C₂₋₆ alkynylcarbonyloxy group, an N—C₁₋₆ alkylcarbamoyl group, an N—C₂₋₆ alkenylcarbamoyl group and an N—C₁₋₆ alkynylcarbamoyl group, (6) a C₁₋₆ alkoxy group, a C₂₋₆ alkenyloxy group or a C₂₋₆ alkynyloxy group which may be optionally substituted respectively with one or more groups selected from the group consisting of a C₁₋₆ alkylamino group, an aralkyloxy group and hydroxy group, (7) a C₁₋₆ alkylthio group, a C₂₋₆ alkenylthio group or a C₂₋₆ alkynylthio group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, nitrile group, a halogen atom, a C₁₋₆ alkylamino group, an aralkyloxy group, a TBDMS oxy group, a C₁₋₆ alkylsulfonylamino group, a C₁₋₆ alkylcarbonyloxy group and a C₁₋₆ alkylcarbamoyl group, (8) a carbonyl group substituted with a group selected from the group consisting of a C₁₋₆ alkoxy group, amino group, a C₁₋₆ alkylamino group, a di(C₁₋₆ alkyl) amino group, a C₂₋₆ alkenylamino group, a di(C₂₋₆ alkenyl) amino group, a C₂₋₆ alkynylamino group, a di(C₂₋₆ alkynyl) amino group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkenylamino group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkynylamino group and an N—C₂₋₆ alkenyl-N—C₂₋₆ alkynylamino group, (9) amino group which may be optionally substituted with one or two groups selected from the group consisting of a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group, a C₁₋₆ alkylsulfonyl group, a C₂₋₆ alkenylsulfonyl group, a C₂₋₆ alkynylsulfonyl group, a C₁₋₆ alkylcarbonyl group, a C₂₋₆ alkenylcarbonyl group and a C₂₋₆ alkynylcarbonyl group, (10) a C₁₋₆ alkylsulfonyl group, (11) a C₂₋₆ alkenylsulfonyl group, (12) a C₂₋₆ alkynylsulfonyl group, (13) a C₁₋₆ alkylsulfinyl group, (14) a C₂₋₆ alkenylsulfinyl group, (15) a C₂₋₆ alkynylsulfinyl group, (16) a formyl group, (17) a C₃₋₈ cycloalkyl group or a C₃₋₈ cycloalkenyl group which may be optionally substituted respectively with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkyl group, a C₁₋₆ alkyloxy group, a C₁₋₆ alkyloxy C₁₋₆ alkyl group and an aralkyl group, (18) a 5- to 14-membered non-aromatic heterocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkyl group, a C₁₋₆ alkyloxy group, a C₁₋₆ alkyloxy C₁₋₆ alkyl group and an aralkyl group, (19) a C₆₋₁₄ aromatic hydrocarbocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkyl group, a C₁₋₆ alkyloxy group, a C₁₋₆ alkyloxy C₁₋₆ alkyl group and an aralkyl group, and (20) a 5- to 14-membered aromatic heterocyclic group which may be optionally substituted with one or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkyl group, a C₁₋₆ alkyloxy group, a C₁₋₆ alkyloxy C₁₋₆ alkyl group and an aralkyl group); (4) the compound according to the above (2), a salt thereof or hydrates thereof, wherein A¹, A² and/or A³ are the same as or different from each other and each is an optionally substituted C₃₋₈ cycloalkyl, C₃₋₈ cycloalkenyl or 5- to 14-membered non-aromatic heteroring; (5) the compound according to the above (2), a salt thereof or hydrates thereof, wherein A¹, A² and/or A³ are the same as or different from each other and each is an optionally substituted C₆₋₁₄ aromatic hydrocarbon ring or a 5- to 14-membered aromatic heteroring; (6) the compound according to the above (2), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are the same as or different from each other and each represents phenyl group, pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group, carbazolyl group, cyclopentyl group, cyclohexyl group, cyclohexenyl group, dioxinyl group, adamantyl group, pyrrolidinyl group, piperidinyl group, piperazinyl group or morpholyl group which may optionally have substituents, respectively; (7) the compound according to the above (2), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are the same as or different from each other and each is a group represented by the formula:

which may be substituted; (8) the compound according to the above (2), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are the same as or different from each other and each is optionally substituted with hydroxyl group, a halogen atom, amino group or nitrile group; (9) the compound according to the above (7), a salt thereof or hydrates thereof, wherein the substituents of A¹, A² and A³ are the same as or different from each other and each is hydroxyl group, a halogen atom or, amino group, nitrile group or nitro group; (10) the compound according to the above (1) or (2), a salt thereof or hydrates thereof, wherein Q is oxygen; (11) the compound according to the above (1) or (2), a salt thereof, hydrates thereof, wherein X¹, X² and X³ are the same as or different from each other and each represents single bond, —CH₂—, —CH(OH)—, —CH₂—CH₂—, —CH═CH—, —C≡C—, —O— or —CO—; (12) the compound according to the above (2), a salt thereof or hydrates thereof, wherein X¹, X² and X³ are single bonds; (13) the compound according to the above (2), a salt thereof or hydrates thereof, wherein R¹⁷ and R¹⁸ are the same as or different from each other and each represents hydrogen atom, fluorine, chlorine, bromine, iodine, methyl group, ethyl group, n-propyl group or iso-propyl group; (14) the compound according to the above (2), a salt thereof or hydrates thereof, wherein R¹⁷ and R¹⁸ represent hydrogen atom; (15) the compound according to the above (1) or (2), a salt thereof or hydrates thereof, which is represented by the formula:

wherein X¹, X², X³, A¹, A², A³, R⁷ and R¹⁸ have the same meanings as defined in the above (2); (16) the compound according to the above (15), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are same as or different from each other and each represents optionally substituted C₆₋₁₄ aromatic hydrocarbon ring or 5- to 14-membered aromatic heteroring; (16) the compound according to the above (15), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are same as or different from each other and each represents optionally substituted C₆₋₁₄ aromatic hydrocarbon ring or 5- to 14-membered aromatic heteroring; (17) the compound according to the above (15), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are the same as or different from each other and each represents optionally substituted phenyl group, pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group, carbazolyl group, cyclopentyl group, cyclohexyl group, cyclohexenyl group, dioxinyl group, adamantyl group, pyrrolidinyl group, piperidinyl group, piperazinyl group or morpholyl group; (18) the compound according to the above (15), a salt thereof or hydrates thereof, wherein A¹, A² and A³ are the same as or different from each other and each represents a group represented by the following formula:

which may be substituted; (19) the compound according to the above (15), a salt thereof or hydrates thereof, wherein the bonding site of the substituent at A¹, A² and/or A³ are α-position of the carbon atom bonding to the group X¹, X² and X³, respectively; (20) the compound according to the above (15), a salt thereof or hydrates thereof, wherein X¹, X² and X³ are single bonds; (21) the compound according to the above (15), a salt thereof or hydrates thereof, wherein R¹⁷ and R¹⁸ are hydrogen atoms; (22) the compound according to the above (1), a salt thereof or hydrates thereof, which is any one of compounds selected from:

-   3-(2-cyanophenyl)-5-(2-methylsulfonylaminophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chloro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-nitrophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-[3-(5-methoxymethyl-2-oxazolidinon-3-yl)-phenyl]-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxycarbonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminocarbonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyano-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-hydroxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-cyanomethylphenyl)-1,2-dihydropyridine-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetylaminomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetoxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylsulfonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-diethylaminomethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-hydroxymethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridine-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1,5-diphenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-methoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3,4-dimethoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(thiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-fluorophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(thiophen-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-on, -   3-(2-methoxycarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(4-methoxy-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-chlorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-tolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(thiophen-3-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-furfuryl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-tolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(pyrimidin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-benzyloxymethylpyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-ethylthiopyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-chloropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-fluoropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(thiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2,6-dimethylphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminopropoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-cyanomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-cyanomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(6-diethylaminomethyl-2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-hydroxypyridin-6-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-(2-aminobenzothiazol-6-yl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-benzyl-1,2,3,6-tetrahydropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-[2-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(6-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(5-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3-hydroxypyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-phenyl-5-(2-thiazolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-methoxypyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   1-(4-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-(3-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-aminotoluen-4-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(dimethylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(piperidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(pyrrolidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(diisoproylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(4-piperidinobutyl-1-oxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(4-nitrophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-phenyl-5-(2-pyridyl)-3-(2-thiazolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoropyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanopyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-nitrophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-naphthyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-naphthyl)-1,2-dihydropyridin-2-one; -   5-(2-aminopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   5-(2-bromopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-morphorinopyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-hydroxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(4-piperidyloxy)]phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-[3-(N-acetylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-{3-[1-(methanesulfonyl)piperidin-4-yl-oxy]phenyl}-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-[3-(N-methylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(6-chloro-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-nitrotoluen-4-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-[2-(5-oxazolyl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-[2-(5-oxazolyl)thiophen-3-yl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one;     and -   3-(2-ethoxycarbonylvinylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; (23)     a process for producing a compound represented by the formula:

(wherein, each A^(1a) and A^(3a) has the same meaning as defined below; and W represents a halogen atom) or a salt thereof, which comprises subjecting the compound represented by the formula:

(wherein A^(1a) and A^(3a) are the same as or different from each other and each indicates an optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14-membered aromatic heterocyclic group) or a salt thereof to a halogenation reaction; (24) a process for producing a compound represented by the formula:

(wherein A^(1a) and A^(3a) have the same meanings as defined above) or a salt thereof, which comprises subjecting the compound represented by the formula:

(wherein A^(3a) has the same meaning as defined above) or a salt thereof and a boronic acid derivative represented by the formula A^(1a)B(OH)₂ (wherein A^(1a) represents an optionally substituted C₆₋₁₄ aromatic hydrocarbon ring or 5- to 14-membered aromatic heteroring) to a coupling reaction in the presence of a copper compound; (25) the production process according to the above (24), which comprises subjecting the compound represented by the above formula (VIII) or a salt thereof produced by subjecting the compound represented by the formula:

(wherein A^(3a) has the same meaning as defined above; and Z³ indicates a protecting group of an alcoholic hydroxy group) to de-protecting reaction and a boronic acid derivative represented by the formula A^(1a)B(OH)₂ (wherein A^(1a) has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (26) the production process according to the above (24), which comprises producing the compound represented by the above formula (VIII) or a salt thereof by subjecting the compound represented by the above formula (IX) or a salt thereof produced by subjecting a boronic acid derivative represented by the formula:

(wherein Z³ has the same meaning as defined above) or a salt thereof and the compound represented by the formula A^(3a)-Z¹ (wherein A^(3a) has the same meaning as defined above; and Z¹ represents a halogen atom) or a salt thereof to a coupling reaction in the presence of a palladium catalyst, to a de-protecting reaction; and then subjecting the compound (VIII) or a salt thereof and a boronic acid derivative represented by the formula A^(1a)B(OH)₂ (wherein A^(1a) has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (27) the production process according to the above (24), which comprises producing the compound represented by the above formula (X) or a salt thereof by reacting the compound represented by the formula:

(wherein Z³ has the same meaning as defined above; and W′ represents a halogen atom) or a salt thereof and trimethoxyborane in the presence of a base; producing the compound represented by the above formula (IX) or a salt thereof by subjecting the compound (X) or a salt and the compound represented by the formula A^(3a)-Z¹ (wherein A^(3a) and Z¹ have the same meanings as defined above) or a salt thereof to a coupling reaction in the presence of a palladium catalyst; producing the compound represented by the above formula (VIII) or a salt thereof by subjecting the compound (IX) or a salt thereof to a de-protecting reaction; and then subjecting the compound (VIII) and a boronic acid derivative represented by the formula A^(1a)B (OH)₂ (wherein A^(1a) has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (28) the production process according to the above (24), which comprises producing the compound represented by the above formula (X) or a salt thereof by reacting the compound represented by the above formula (XI) or a salt thereof produced by reacting the compound represented by the formula:

(wherein W′ and W″ are the same as or different from each other and each represents halogen atoms) or a salt thereof and the compound represented by the formula Z³OM (wherein Z³ has the same meaning as defined above; and M represents an alkali metal atom) and trimethoxyborane in the presence of a base; producing the compound represented by the above formula (IX) or a salt thereof by subjecting the compound (X) or a salt thereof and the compound represented by the formula A^(3a)-Z¹ (wherein A^(3a) and Z¹ have the same meanings as defined above) or a salt thereof to a coupling reaction in the presence of a palladium catalyst; producing the compound represented by the above formula (VIII) or a salt thereof by subjecting the compound (IX) or a salt thereof to a de-protecting reaction; and then subjecting the compound (VIII) and a boronic acid derivative represented by the formula A^(1a)B(OH)₂ (wherein A^(1a) has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (29) the production process according to the above (23), which comprises subjecting the compound represented by the above formula (VI) and produced by the production process according to any of the above (24) to (28) or a salt thereof to a halogenation reaction; (30) the production process according to the above (23) or (29), wherein W is bromine or iodine; (31) the production process according to the above (23) or (29), wherein the halogenation reaction for producing the compound (VII) or a salt thereof is (1) a bromination reaction using N-bromosuccinimide or acetic acid-bromine or (2) an iodination reaction using N-iodosuccinimide or iodine; (32) the production process according to the above (23) or (29), wherein the halogenation reaction for producing the compound (VII) or a salt thereof is carried out using N,N-dimethylformamide as a solvent; (33) the production process according to the above (23) or (29), wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group; (34) the production process according to any of the above (24) to (28), wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group; (35) the production process according to any of the above (24) to (29), wherein the copper compound used for a coupling reaction using the compound (VIII) or a salt thereof is copper acetate or di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine)copper (II)]chloride; (36) the production process according to any of the above (24) to (29), wherein the coupling reaction using the compound (VIII) or a salt thereof is carried out in the presence of a base; (37) the production process according to the above (36), wherein the base is triethylamine, pyridine or tetramethylethylenediamine; (38) the production process according to any of the above (24) to (29), wherein the coupling reaction using the compound (VIII) or a salt thereof is carried out using N,N-dimethylformamide as a solvent; (39) the production process according to any of the above (25) to (29), wherein Z³ is a C₁₋₆ alkyl group or a C₁₋₆ aralkyl group; (40) the production process according to the above (25) to (29), wherein the reaction of de-protection of the compound (IX) or a salt thereof is carried out in the presence of an acid; (41) the production process according to the above (40), wherein the acid is hydrochloric acid; (42) the production process according to the above (26) to (29), wherein a catalyst in the coupling reaction using the compound (X) or a salt thereof is palladium acetate and triphenylphosphine; (43) the production process according to the above (26) to (29), wherein the coupling reaction using the compound (X) or a salt thereof is carried out in the presence of a base; (44) the production process according to the above (43), wherein the base is cesium carbonate, sodium carbonate or potassium carbonate; (45) the production process according to any of the above (27) to (29), wherein W′ is bromine; (46) the production process according to the above (27) to (29), wherein the base used for the reaction of the compound (XI) or a salt thereof with trimethoxyborane is n-butyllithium; (47) the production process according to the above (28) or (29), wherein W′ and W″ are bromine; (48) the production process according to the above (28) or (29), wherein the compound represented by the formula Z³OM is sodium methoxide or sodium ethoxide; (49) a process for producing a compound represented by the formula:

(wherein, the ring D and the ring E have the same meanings as defined below; and W has the same meaning as defined above) or a salt thereof, which comprises subjecting a compound represented by the formula:

(wherein, the ring D ring indicates an optionally substituted pyridine ring; and the ring E represents an optionally substituted benzene ring) or a salt thereof to a halogenation reaction; (50) a process for producing a compound represented by the formula:

(wherein, the ring D and the ring E have the same meanings as defined above) or a salt thereof, which comprises subjecting the compound represented by the formula:

(wherein the ring D has the same meaning as defined above) or a salt thereof and a boronic acid derivative represented by the formula PhB(OH)₂ (wherein Ph indicates an optionally substituted phenyl group) to a coupling reaction in the presence of a copper compound; (51) the production process according to the above (50), which comprises subjecting the compound represented by the above formula (VIII)′ or a salt thereof produced by subjecting the compound represented by the formula:

(wherein the ring B and Z³ have the same meanings as defined above) or a salt thereof to a de-protecting reaction, and a boronic acid derivative represented by the formula PhB(OH)₂ (wherein Ph has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (52) the production process according to the above (50), which comprises producing the compound represented by the above formula (VII)′ or a salt thereof by subjecting the compound represented by the above formula (IX)′ or a salt thereof produced by subjecting a boronic acid derivative represented by the formula:

(wherein Z³ has the same meaning as defined above) or a salt thereof and an optionally substituted 2-halogenopyridine or a salt thereof to a coupling reaction in the presence of a palladium catalyst to a de-protecting reaction; and then subjecting the compound (VIII)′ or a salt thereof and a boronic acid derivative represented by the formula PhB(OH)₂ (wherein Ph has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (53) the production process according to the above (50), which comprises producing the compound represented by the above formula (X) or a salt thereof by reacting the compound represented by the formula:

(wherein Z³ has the same meaning as defined above; and W′ represents a halogen atom) or a salt thereof and trimethoxyborane in the presence of a base; producing the compound represented by the above formula (IX)′ or a salt thereof by subjecting the compound (X) or a salt thereof and an optionally substituted 2-halogenopyridine or a salt thereof to a coupling reaction in the presence of a palladium catalyst; producing the compound represented by the above formula (VIII)′ or a salt thereof by subjecting the compound (IX)′ or a salt to a de-protecting reaction; and then subjecting the compound (VIII)′ and a boronic acid derivative represented by the formula PhB(OH)₂ (wherein Ph has the same meaning as defined above) in the presence of a copper compound; (54) the production process according to the above (50), which comprises producing the compound represented by the above formula (X) or a salt thereof by reacting the compound represented by the above formula (XI) or a salt thereof produced by reacting the compound represented by the formula:

(wherein W′ and W″ are the same as or different from each other and each represents halogen atoms) or a salt thereof and the compound represented by the formula Z³OM (wherein Z³ and M have the same meanings as defined above), and tirmethoxyborane in the presence of a base; producing the compound represented by the above formula (IX)′ or a salt thereof by subjecting the compound (X) or a salt and an optionally substituted 2-halogenopyridine or a salt thereof to a coupling reaction in the presence of a palladium catalyst; producing the compound represented by the above formula (VIII) or a salt thereof by subjecting the compound (IX)′ or a salt to a de-protecting reaction; and then subjecting the compound (VIII)′ and a boronic acid derivative represented by the formula PhB(OH)₂ (wherein Ph has the same meaning as defined above) to a coupling reaction in the presence of a copper compound; (55) the production process according to the above (25), which comprises subjecting the compound represented by the above formula (VI)′ and produced by the production process according to any of the above (29) to (32) or a salt thereof to a halogenation reaction; (56) the production process according to the above (49) or (55), wherein W is bromine or iodine; (57) the production process according to the above (49) or (55), wherein the halogenation reaction for producing the compound (VII) or a salt thereof is (1) a bromination reaction using N-bromosuccinimide or acetic acid-bromine, or (2) an iodination reaction using N-iodosuccinimide or iodine; (58) the production process according to the above (49) or (55), wherein the halogenation reaction for producing the compound (VII) or a salt thereof is carried out using N,N-dimethylformamide as a solvent; (59) the production process according to the above (49) or (55), wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group; (60) the production process according to any of the above (50) to (54), wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group; (61) the production process according to any of the above (50) to (55), wherein the copper compound used for the coupling reaction using the compound (VIII) or a salt thereof is copper acetate or di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine)copper (II)]chloride; (62) the production process according to any of the above (50) to (55), wherein the coupling reaction using the compound (VIII) or a salt thereof is carried out in the presence of a base; (63) the production process according to the above (62), wherein the base is triethylamine, pyridine or tetramethylethylenediamine; (64) the production process according to any of the above (50) to (55), wherein the coupling reaction using the compound (VIII) or a salt thereof is carried out using N,N-dimethylformamide as a solvent; (65) the production process according to any of the above (51) to (55), wherein Z³ is a C₁₋₆ alkyl group or an aralkyl group; (66) the production process according to the above (51) to (55), wherein the de-protection reaction of the compound (IX) or a salt thereof is carried out in the presence of an acid; (67) the production process according to the above (66), wherein the acid is hydrochloric acid; (68) the production process according to the above (52) to (55), wherein a catalyst in the coupling reaction using the compound (X) or a salt thereof is palladium acetate and triphenylphosphine; (69) the production process according to the above (52) to (55), wherein the coupling reaction using the compound (X) or a salt thereof is carried out in the presence of a base; (70) the production process according to the above (69), wherein the base is cesium carbonate, sodium carbonate or potassium carbonate; (71) the production process according to any of the above (53) to (55), wherein W′ is bromine; (72) the production process according to the above (53) to (55), wherein the base used for the reaction of the compound (XI) or a salt thereof with trimethoxyborane is n-butyllithium; (73) the production process according to the above (54) or (55), wherein W′ and W″ are bromine; (74) the production process according to the above (54) or (55), wherein the compound represented by the formula Z³OM is sodium methoxide or sodium ethoxide; (75) the production process according to any of the above (52) to (55), wherein the optionally substituted 2-halogenopyridine is an optionally substituted 2-bromopyridine; (76) a compound represented by the following formula or a salt thereof:

wherein A^(1a) and A^(3a) are the same as or different from each other and each indicates an optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14-membered aromatic heterocyclic group; and R indicates hydrogen atom or a halogen atom; (77) the compound according to the above (76) or a salt thereof, wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group; (78) the compound according to the above (76) or a salt thereof, wherein A^(1a) and A^(3a) are the same as or different from each other and each represents an optionally substituted phenyl group, pyridyl group, pyrimidinyl group, thienyl group or furyl group; (79) the compound according to the above (76) or a salt thereof, wherein R is hydrogen atom or bromine; (80) a pharmaceutical composition comprising a compound represented by the following formula, a salt thereof or hydrates thereof:

in the formula, Q indicates NH, O or S; and R¹, R², R³, R⁴ and R⁵ are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C₁₋₆ alkyl group or the formula —X-A (wherein X indicates a single bond, a C₁₋₆ alkylene group which may optionally have a substituent, a C₂₋₆ alkenylene group which may optionally have a substituent, a C₂₋₆ alkynylene group which may optionally have a substituent, —O—, —S—, —CO—, —SO—, —SO₂—, —N(R⁶)—, —N(R⁷)—CO—, —CO—N(R⁸)—, —N(R⁹)—CH₂—, —CH₂—N(R¹⁰)—, —CH₂—CO—, —CO—CH₂—, —N(R¹¹)—S(O)_(m)—, —S(O)_(n)—N(R¹²)—, —CH₂—S(O)_(p)—, —S(O)_(q)—CH₂—, —CH₂—O—, —O—CH₂—, —N(R¹³)—CO—N(R¹⁴)— or —N(R¹⁵)—CS—N(R¹⁶)— (wherein R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ indicates hydrogen atom, a C₁₋₆ alkyl group or a C₁₋₆ alkoxy group; and m, n, p and q are independent of each other and each indicates an integer of 0, 1 or 2); and A indicates an optionally substituted C₃₋₈ cycloalkyl group, C₃₋₈ cycloalkenyl group, 5- to 14-membered non-aromatic heterocyclic group, C₆₋₁₄ aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group), provided that 3 groups among R¹, R², R³, R⁴ and R⁵ are always the same as or different from each other and each indicates —X-A; and the residual 2 groups always indicate hydrogen atom, a halogen atom or a C₁₋₆ alkyl group; (81) the pharmaceutical composition according to the above (80), wherein it is an inhibitor to an α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (hereinafter, referred to as “AMPA”) receptor and/or a kainate receptor; (82) the pharmaceutical composition according to the above (80), wherein it is an inhibitor to an AMPA receptor; (83) the pharmaceutical composition according to the above (80), wherein it is an inhibitor to an kainate receptor; (84) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for the diseases in which an AMPA receptor or a kainate receptor is participated; (85) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for the diseases in which a kainate receptor is participated; (86) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for acute neurodegenerative disease; (87) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for cerebrovascular disorders at acute stage, head injury, spinal cord injury, neuropathies due to hypoxia or hypoglycemia; (88) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for chronic neurodegenerative disease; (89) the pharmaceutical composition according to the above (80), which is a therapeutic or preventive agent for Alzheimer's disease, Parkinson's disease, Huntington's chorea, amyotrophic lateral sclerosis or spinocerebellar degeneration; (90) the pharmaceutical composition according to the above (80), which is an agent for treating or preventing epilepsy, hepatic encephalopathy, peripheral neuropathy, Parkinson's syndrome, spasticity, pain, neuralgia, schizophrenia, anxiety, drug abuse, nausea, emesis, dysuria, paropsia caused by glaucoma, paracusis caused by antibiotics or food poisoning; (91) the pharmaceutical composition according to the above (80), which is an agent for treating or preventing infectious encephalomyelitis, cerebrovascular senile dementia or dementia or neurosis caused by cerebrospinal meningitis; (92) the pharmaceutical composition according to the above (91), wherein the infectious encephalomyelitis is HIV encephalomyelitis; (93) the pharmaceutical composition according to the above (80), which is an agent for treating or preventing demyelinating disease; (94) the pharmaceutical composition according to the above (93), wherein the demyelinating disease is encephalitis, acute disseminated encephalomyelitis, multiple sclerosis, acute polyradiculoneuritis, Guillain-Barre syndrome, chronic inflammatory demyelinating polyneuropathy, Marchifava-Bignami disease, central pontine myelinolysis, neuromyelitis optica, Devic disease, Balo disease, HIV myelopathy, HTLV myelopathy, progressive multifocal leukoencephalopathy or secondary demyelinating disease; (95) the pharmaceutical composition according to the above (94), wherein the secondary demyelinating disease is CNS erythematodes, polyarteritis nodosa, Sjoegren's syndrome, sarcoidosis or isolated cerebral vasculitis; and the like.

The present invention provides a process for preventing or treating diseases in which AMPA receptor or kainate receptor is participated, by dosing a pharmacologically effective dose of the compound represented by the formula (I), a salt thereof or hydrates thereof to a patient.

The present invention provides use of the compound represented by the formula (I), a salt thereof or hydrates thereof for producing a therapeutic or preventive agent for diseases in which AMPA receptor or kainate receptor is participated.

In the present invention, “the diseases in which AMPA receptor or kainate receptor is participated” include acute neurodegenerative disease; cerebrovascular disorders at acute stage; head injury; spinal cord injury; and neuropathies due to hypoxia or hypoglycemia; chronic neurodegenerative disease; Alzheimer's disease; Parkinson s disease; Huntington's chorea; amyotrophic lateral sclerosis; spinocerebellar degeneration; epilepsy; hepatic encephalopathy; peripheral neuropathy; Parkinson's syndrome; spasticity; pain; neuralgia; schizophrenia; anxiety; drug abuse; nausea; emesis; dysuria; paropsia caused by glaucoma; paracusis caused by antibiotics; food poisoning; infectious encephalomyelitis; cerebrovascular dementia; dementia or neurosis caused by meningitis; and demyelinating diseases.

DETAILED DESCRIPTION OF THE INVENTION

As hereunder, meanings of the symbols, terms, etc. mentioned in the specification of this application will be explained, whereby the present invention will be illustrated in detail.

As “acute neurodegenerative disease” in the present invention, for example, cerebrovascular disorders at acute stage (subarachnoid hemorrhage, cerebral infarction and the like), head injury, spinal cord injury, and neuropathies due to hypoxia or hypoglycemia; and the like are mentioned. As “chronic neurodegenerative disease”, for example, Alzheimer's disease, Parkinson's disease, Huntington's chorea, amyotrophic lateral sclerosis, spinocerebellar degeneration and the like are mentioned. As “infectious encephalomyelitis”, for example, HIV encephalomyelitis is mentioned, and as “demyelinating disease”, for example, encephalitis, acute disseminated encephalomyelitis, multiple sclerosis, acute polyradiculoneuritis, Guillain-Barre syndrome, chronic inflammatory demyelinating polyneuropathy, Marchifava-Bignami disease, central pontine myelinolysis, neuromyelitis optica, Devic disease, Balo disease, HIV myelopathy, HTLV myelopathy, progressive multifocal leukoencephalopathy, secondary demyelinating disease and the like are mentioned. As “the secondary demyelinating disease” mentioned above, for example, CNS lupus erythematodes, polyarteritis nodosa, Sjoegren's syndrome, sarcoidosis, isolated cerebral vasculitis and the like are mentioned.

The term “and/or” used in the present invention is used in the meaning that both cases in case of “and” and in case of “or” are included.

Incidentally, in the specification of this application, although structural formula of a compound may express a certain isomer for the sake of convenience, the present invention covers all isomers such as geometrical isomers resulted from the structure of the compound, optical isomers due to asymmetric carbon, rotamers, stereo isomers and tautomers as well as a mixture of isomers and the present invention is not limited to the description of the formula given for the sake of convenience but may be another isomer or may be a mixture. Accordingly, although it is possible that an asymmetric carbon atom is present in a molecule and accordingly that optically active substance and racemic substance may be present, the present invention is not limited thereto but covers any of them. Further, crystal polymorphism may be present but, again, there is no limitation but any of single crystal form or a mixture will do. The compound (I) or its salt related to the present invention may be an anhydride or a hydrate, and either of them are included in the scope of claim for patent in the present invention. The metabolite which is generated by decomposing the compound (I) related to the present invention in vivo, and the prodrug of the compound (I) or its salt related to the present invention produce are also included in the scope of claim for patent in the present invention.

The “halogen atom” used in the present invention indicates fluorine, chlorine, bromine, iodine and the like, and the preferable atom include fluorine, chlorine and bromine.

The “C₁₋₆ alkyl group” used in the present invention indicates an alkyl group having 1 to 6 carbons, and examples include linear chain or branched chain alkyl groups such as methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, 1,1-dimethylpropyl group, 1,2-dimethylpropyl group, 2,2-dimethylpropyl group, 1-ethylpropyl group, 2-ethylpropyl group, n-hexyl group, 1-methyl-2-ethylpropyl group, 1-ethyl-2-methylpropyl group, 1,1,2-trimethylpropyl group, 1-propylpropyl group, 1-methylbutyl group, 2-methylbutyl group, 1,1-dimethylbutyl group, 1,2-dimethylbutyl group, 2,2-dimethylbutyl group, 1,3-dimethylbutyl group, 2,3-dimethylbutyl group, 2-ethylbutyl group, 2-methylpentyl group, 3-methylpentyl group, and the like.

The “C₂₋₆ alkenyl group” used in the present invention indicates an alkenyl group having 2 to 6 carbons, and examples of the preferable group include vinyl group, allyl group, 1-propenyl group, 2-propenyl group, iso-propenyl group, 2-methyl-1-propenyl group, 3-methyl-1-propenyl group, 2-methyl-2-propenyl group, 3-methyl-2-propenyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 1-pentenyl group, 1-hexenyl group, 1,3-hexadienyl group, 1,6-hexadienyl group, and the like.

The “C₂₋₆ alkynyl group” used in the present invention indicates an alkynyl group having 2 to 6 carbons, and examples of the preferable group include ethynyl group, 1-propynyl group, 2-propynyl group, 1-butynyl group, 2-butynyl group, 3-butynyl group, 3-methyl-1-propynyl group, 1-ethynyl-2-propynyl group, 2-methyl-3-propynyl group, 1-pentynyl group, 1-hexynyl group, 1,3-hexadiynyl group, 1,6-hexadiynyl group, and the like.

The “C₁₋₆ alkoxy group” used in the present invention indicates an alkoxy group having 1 to 6 carbons, and examples include methoxy group, ethoxy group, n-propoxy group, iso-propoxy group, sec-propoxy group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, n-pentyloxy group, iso-pentyloxy group, sec-pentyloxy group, n-hexoxy group, iso-hexoxy group, 1,1-dimethylpropoxy group, 1,2-dimethylpropoxy group, 2,2-dimethylpropoxy group, 2-ethylpropoxy group, 1-methyl-2-ethylpropoxy group, 1-ethyl-2-methylpropoxy group, 1,1,2-trimethylpropoxy group, 1,1,2-trimethylpropoxy group, 1,1-dimethylbutoxy group, 1,2-dimethylbutoxy group, 2,2-dimethylbutoxy group, 2,3-dimethylbutoxy group, 1,3-dimethylbutoxy group, 2-ethylbutoxy group, 1,3-dimethylbutoxy group, 2-methylpentoxy group, 3-methylpentoxy group, hexyloxy group, and the like.

The “C₂₋₆ alkenyloxy group” used in the present invention indicates an alkenyloxy group having 2 to 6 carbons, and examples of the preferable group include vinyloxy group, allyloxy group, 1-propenyloxy group, 2-propenyloxy group, iso-propenyloxy group, 2-methyl-1-propenyloxy group, 3-methyl-1-propenyloxy group, 2-methyl-2-propenyloxy group, 3-methyl-2-propenyloxy group, 1-butenyloxy group, 2-butenyloxy group, 3-butenyloxy group, 1-pentenyloxy group, 1-hexenyloxy group, 1,3-hexadienyloxy group, 1,6-hexadienyloxy group, and the like.

The “C₃₋₈ cycloalkyl group” used in the present invention indicates a cycloalkyl group composed of 3 to 8 carbon atoms, and examples include cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, and the like.

The “C₃₋₈ cycloalkenyl group” used in the present invention indicates a C₃₋₈ cycloalkenyl group composed of 3 to 8 carbon atoms, and examples include cyclopropen-1-yl, cyclopropen-3-yl, cyclobuten-1-yl, cyclobuten-3-yl, 1,3-cyclobutadien-1-yl, cyclopenten-1-yl, cyclopenten-3-yl, cyclopenten-4-yl, 1,3-cyclopentadien-1-yl, 1,3-cyclopentadien-2-yl, 1,3-cyclopentadien-5-yl, cyclohexen-1-yl, cyclohexen-3-yl, cyclohexen-4-yl, 1,3-cyclohexadien-1-yl, 1,3-cyclohexadien-2-yl, 1,3-cyclohexadien-5-yl, 1,4-cyclohexadien-3-yl, 1,4-cyclohexadien-1-yl, cyclohepten-1-yl, cyclohepten-3-yl, cyclohepten-4-yl, cyclohepten-5-yl, 1,3-cyclohepten-2-yl, 1,3-cyclohepten-1-yl, 1,3-cycloheptadien-5-yl, 1,3-cycloheptadien-6-yl, 1,4-cycloheptadien-3-yl, 1,4-cycloheptadien-2-yl, 1,4-cycloheptadien-1-yl, 1,4-cycloheptadien-6-yl, 1,3,5-cycloheptatrien-3-yl, 1,3,5-cycloheptatrien-2-yl, 1,3,5-cycloheptatrien-1-yl, 1,3,5-cycloheptatrien-7-yl, cycloocten-1-yl, cycloocten-3-yl, cycloocten-4-yl, cycloocten-5-yl, 1,3-cyclooctadien-2-yl, 1,3-cyclooctadien-1-yl, 1,3-cyclooctadien-5-yl, 1,3-cyclooctadien-6-yl, 1,4-cyclooctadien-3-yl, 1,4-cyclooctadien-2-yl, 1,4-cyclooctadien-1-yl, 1,4-cyclooctadien-6-yl, 1,4-cyclooctadien-7-yl, 1,5-cyclooctadien-3-yl, 1,5-cyclooctadien-2-yl, 1,3,5-cyclooctatrien-3-yl, 1,3,5-cyclooctatrien-2-yl, 1,3,5-cyclooctatrien-1-yl, 1,3,5-cyclooctatrien-7-yl, 1,3,6-cyclooctatrien-2-yl, 1,3,6-cyclooctatrien-1-yl, 1,3,6-cyclooctatrien-5-yl, 1,3,6-cyclooctatrien-6-yl group, and the like.

The “5 to 14 membered non-aromatic heterocyclic group” used in the present invention means a mono-cyclic type, di-cyclic type, or tri-cyclic type 5 to 14 membered non-aromatic heterocyclic group which contains one or more of hetero atoms selected from a group which consists of nitrogen atom, sulfur atom and oxygen atom. Specific examples in the group include, for example, pyrrolidinyl group, pyrrolyl group, piperidinyl group, piperazinyl group, imidazolyl group, pyrazolidyl group, imidazolidyl group, morpholyl group, tetrahydrofuryl group, tetrahydropyranyl group, pyrrolinyl group, dihydrofuryl group, dihydropyranyl group, imidazolinyl group, oxazolinyl group, and the like. Further, a group derived from a pyridone ring and a non-aromatic condensed ring (for example, a group derived from a phthalimide ring, a succinimide ring, and the like) are also included in the non-aromatic heterocyclic group.

The “C₆₋₁₄ aromatic hydrocarbocyclic group” and the “aryl group” used in the present invention mean an aromatic hydrocarbocyclic group having which is composed of 6 to 14 carbon atoms, and a mono-cyclic group, and a condensed group of a di-cyclic group, a tri-cyclic group and the like are also included. Specific examples in the group include phenyl group, indenyl group, 1-naphthyl group, 2-naphthyl group, azulenyl group, heptalenyl group, biphenyl group, indathenyl group, acenaphthyl group, fluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, cyclopentacyclooctenyl group, benzocyclooctenyl group etc.

The “5 to 14 membered aromatic heterocyclic group” and the “heteroaryl group” used in the present invention mean a mono-cyclic type, di-cyclic type, or tri-cyclic type 5 to 14 membered aromatic heterocyclic group which contains one or more of hetero atoms selected from a group which consists of nitrogen atom, sulfur atom and oxygen atom. For example, specific examples in the group include 1) aromatic heterocyclic groups containing nitrogen such as pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, triazolyl group, tetrazolyl group, benzotriazolyl group, pyrazolyl group, imidazolyl group, benzimidazolyl group, indolyl group, iso-indolyl group, indolizinyl group, prenyl group, indazolyl group, quinolyl group, iso-quinolyl group, quinoliziyl group, phthalazyl group, naphthylidinyl group, quinoxalyl group, quinazolinyl group, cynnolinyl group, pteridinyl group, imidazotriazinyl group, pyrazinopyridazinyl group, acridinyl group, phenanthridinyl group, carbazolyl group, carbazolinyl group, perimidinyl group, phenanthrolinyl group, phenacinyl group, imidazopyridinyl group, imidazopyrimidinyl group, pyrazolopyridinyl group, pyrazolopyridinyl group etc; 2) aromatic heterocyclic groups containing sulfur such as thienyl group or benzothienyl group; 3) aromatic heterocyclic groups containing oxygen such as furyl group, pyranyl group, cyclopentapyranyl group, benzofuryl group or iso-benzofuryl group; and 4) aromatic heterocyclic groups containing 2 or more of different hetero atoms such as thiazolyl group, iso-thiazolyl group, benzothiazolyl group, benzthiadiazolyl group, phenothiazinyl group, isoxazolyl group, furazanyl group, phenoxazinyl group, oxazolyl group, isoxazoyl group, benzoxazolyl group, oxadiazolyl group, pyrazoloxadiazolyl group, imidazothiazolyl group, thienofuranyl group, furopyrrolyl group or pyridoxadinyl group.

The groups indicated by A, A¹, A² and A³ in the formula (I) in the present invention indicate independently an optionally substituted C₃₋₈ cycloalkyl group, an optionally substituted C₃₋₈ cycloalkenyl group, an optionally substituted 5 to 14 membered non-aromatic heterocyclic group, an optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or an optionally substituted 5 to 14 membered aromatic heterocyclic group, and each of the groups has the same meanings as the above definitions, respectively. The preferable group in A, A¹, A² and A³ is not specifically limited, but the more preferable group includes phenyl group, pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group, carbazolyl group, cyclopentyl group, cyclohexyl group, cyclohexenyl group, dioxinyl group, adamantyl group, pyrrolidinyl group, piperidinyl group, piperazinyl group and morpholinyl group which may be substituted, respectively, etc. The more preferable group includes a group represented by the formula:

which may optionally have substituents respectively, etc., and the most preferable group includes a group represented by the formula:

which may optionally have substituents respectively, etc.

Examples of the preferable group in the “substituents” of the groups indicated by A, A¹, A² and A³ in the formula (I) include a group such as hydroxy group, a halogen atom, nitrile group, nitro group, a C₁₋₆ alkyl group, C₂₋₆ alkenyl group, C₂₋₆ alkynyl group, C₁₋₆ alkoxy group, C₂₋₆ alkenyloxy group, C₂₋₆ alkynyloxy group, C₁₋₆ alkylthio group, C₂₋₆ alkenylthio group, C₂₋₆ alkynylthio group, amino group, a substituted carbonyl group, C₁₋₆ alkylsulfonyl group, C₂₋₆ alkenylsulfonyl group, C₂₋₆ alkynylsulfonyl group, C₁₋₆ alkylsulfinyl group, C₂₋₆ alkenylsulfinyl group, C₂₋₆ alkynylsulfinyl group, formyl group, aralkyl group, heteroarylalkyl group, aralkyloxy group, heteroarylalkyloxy group, C₃₋₈ cycloalkyl group, C₃₋₈ cycloalkenyl group, 5 to 14 membered non-aromatic heterocyclic group, C₆₋₁₄ aromatic hydrocarbon group, 5 to 14 membered aromatic heterocyclic group etc., which may be substituted, respectively.

Examples of the preferable group in the “halogen atom” include fluorine atom, chlorine atom, bromine atom, iodine atom etc., and the more preferable example includes fluorine atom, chlorine atom and bromine atom.

Examples of the preferable group in the “C₁₋₆ alkyl group which may optionally have substituents” include methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, tert-butyl group, n-pentyl group, iso-pentyl group, neopentyl group, n-hexyl group, 1-methylpropyl group, 1,2-dimethylpropyl group, 2-ethylpropyl group, 1-methyl-2-ethylpropyl group, 1-ethyl-2-methylpropyl group, 1,1,2-trimethylpropyl group, 1-methylbutyl group, 2-methylbutyl group, 1,1-dimethylbutyl group, 2,2-dimethylbutyl group, 2-ethylbutyl group, 1,3-dimethylbutyl group, 2-methylpentyl group, 3-methylpentyl group etc. Examples of the preferable group in the “C₂₋₆ alkenyl group which may optionally have substituents” include a vinyl group, allyl group, 1-propenyl group, iso-propenyl group, 1-buten-1-yl group, 1-buten-2-yl group, 1-buten-3-yl group, 2-buten-1-yl group, 2-buten-2-yl group etc., which may be substituted, respectively. Examples of the preferable group in the “C₂₋₆ alkynyl group which may optionally have substituents respectively” include an ethynyl group, 1-propynyl group, 2-propynyl group, butynyl group, pentynyl group, hexynyl group etc., which may be substituted, respectively. Further, preferable examples of the “substituents” in the “which may optionally have substituents” include 1 or more groups selected from hydroxy group, nitrile group, a halogen atom, an N—C₁₋₆ alkylamino group, an N,N-di-C₁₋₆ alkylamino group, an N—C₂₋₆ alkenylamino group, an N,N-di-C₂₋₆ alkenylamino group, an N—C₂₋₆ alkynylamino group, an N,N-di-C₂₋₆ alkynylamino group, a C₆₋₁₄ aromatic hydrocarbocyclic group (for example, phenyl group etc.), a 5 to 14 membered aromatic heterocyclic group (for example, thienyl group, furyl group, pyridyl group, pyridazyl group, pyrimidinyl group, pyrazyl group etc.), an aralkyloxy group, a heteroaryloxy group, a TBDMS-oxy group, a C₁₋₆ alkylsulfonylamino group, a C₂₋₆ alkenylsulfonylamino group, a C₂₋₆ alkynylsulfonylamino group, a C₁₋₆ alkylcarbonyloxy group, a C₂₋₆ alkenylcarbonyloxy group, a C₂₋₆ alkynylcarbonyloxy group, a C₁₋₆ alkylcarbamoyl group, a C₂₋₆ alkenylcarbamoyl group, a C₂₋₆ alkynylcarbamoyl group, and the like.

Preferable examples in the “C₁₋₆ alkoxy group which may optionally have substituents” include methoxy group, ethoxy group, n-propoxy group, iso-propoxy group, sec-propoxy group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, n-pentoxy group, iso-pentoxy group, sec-pentoxy group, tert-pentoxy group, n-hexoxy group, iso-hexoxy group, 1,2-dimethylpropoxy group, 2-ethylpropoxy group, 1-methyl-2-ethylpropoxy group, 1-ethyl-2-methylpropoxy group, 1,1,2-trimethylpropoxy group, 1,1-dimethylbutoxy group, 2,2-dimethylbutoxy group, 2-ethylbutoxy group, 1,3-dimethylbutoxy group, 2-methylpentoxy group, 3-methylpentoxy group, hexyloxy group etc. Preferable examples in the “C₂₋₆ alkenyloxy group which may optionally have substituents” include vinyloxy group, allyloxy group, 1-propenyloxy group, iso-propenyloxy group, 1-buten-1-yloxy group, 1-buten-2-yloxy group, 1-buten-3-yloxy group, 2-buten-1-yloxy group, 2-buten-2-yloxy group etc. Preferable examples in the “C₂₋₆ alkynyloxy group which may optionally have substituents” include ethynyloxy group, 1-propynyloxy group, 2-propynyloxy group, butynyloxy group, pentynyloxy group, hexynyloxy group etc. Further, preferable examples of the “substituents” in the “which may optionally have substituents” include 1 or more groups selected from an C₁₋₆ alkylamino group, an aralkyloxy group, hydroxy group, and the like.

Respectively preferable examples in the “C₁₋₆ alkylthio group which may optionally have substituents”, “C₂₋₆ alkenylthio group which may optionally have substituents” and “C₂₋₆ alkynylthio group which may optionally have substituents” include a C₁₋₆ alkylthio group (for example, methylthio group, ethylthio group, n-propylthio group, iso-propylthio group, n-butylthio group, iso-butylthio group, tert-butylthio group, n-pentylthio group, iso-pentylthio group, neopentylthio group, n-hexylthio group etc.), a C₂₋₆ alkenylthio group (for example, vinylthio group, allylthio group, 1-propenylthio group, iso-propenylthio group, 1-buten-1-ylthio group, 1-buten-2-ylthio group, 1-buten-3-ylthio group, 2-buten-1-ylthio group, 2-buten-2-ylthio group etc.) and a C₂₋₆ alkynylthio group (for example, ethynylthio group, 1-propynylthio group, 2-propynylthio group, butynylthio group, pentynylthio group, hexynylthio group etc.), which may be optionally substituted by 1 or more groups selected from the group consisting of hydroxy group, a halogen atom, nitrile group and nitro group.

Preferable examples in the “carbonyl group which was substituted” include a group which is represented by the formula —CO—W (examples of W in the formula include a C₁₋₆ alkyl group, a C₂₋₆ alkenyl group, a C₂₋₆ alkynyl group, a C₁₋₆ alkoxy group, amino group, an N—C₁₋₆ alkylamino group, an N,N-di(C₁₋₆ alkyl) amino group, an N—C₂₋₆ alkenylamino group, an N,N-di(C₂₋₆ alkenyl) amino group, an N—C₂₋₆ alkynylamino group, an N,N-di(C₂₋₆ alkynyl) amino group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkenylamino group, an N—C₁₋₆ alkyl-N—C₂₋₆ alkynylamino group, an N—C₂₋₆ alkenyl-N—C₂₋₆ alkynylamino group etc.).

Examples of the “substituents” in the “amino group which may optionally have substituents” include 1 or 2 groups selected from a C₁₋₆ alkyl group, C₂₋₆ alkenyl group, C₂₋₆ alkynyl group, C₁₋₆ alkylsulfonyl group, C₂₋₆ alkenylsulfonyl group, C₂₋₆ alkynylsulfonyl group, C₁₋₆ alkylcarbonyl group, C₂₋₆ alkenylcarbonyl group, C₂₋₆ alkynylcarbonyl group etc., which may be substituted, respectively. Preferable examples in the “substituents” of the C₁₋₆ alkyl group, C₂₋₆ alkenyl group, C₂₋₆ alkynyl group, C₁₋₆ alkylsulfonyl group, C₂₋₆ alkenylsulfonyl group, C₂₋₆ alkynylsulfonyl group, C₁₋₆ alkylcarbonyl group, C₂₋₆ alkenylcarbonyl group and C₂₋₆ alkynylcarbonyl group include hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkoxy group, a C₁₋₆ alkylthio group etc. Specifically preferable examples in the “amino group which may optionally have substituents” in particular include methylamino group, ethylamino group, n-propylamino group, iso-propylamino group, n-butylamino group, iso-butylamino group, tert-butylamino group, n-pentylamino group, iso-pentylamino group, neopentylamino group, n-hexylamino group, 1-methylpropylamino group, 1,2-dimethylpropylamino group, 2-ethylpropylamino group, 1-methyl-2-ethylpropylamino group, 1-ethyl-2-methylpropylamino group, 1,1,2-trimethylpropylamino group, 1-methylbutylamino group, 2-methylbutylamino group, 1,1-dimethylbutylamino group, 2,2-dimethylbutylamino group, 2-ethylbutylamino group, 1,3-dimethylbutylamino group, 2-methylpentylamino group, 3-methylpentylamino group, N,N-dimethylamino group, N,N-diethylamino group, N,N-di(n-propyl)amino group, N,N-di(iso-propyl)amino group, N,N-di(n-butyl)amino group, N,N-di(iso-butyl) amino group, N,N-di(tert-butyl) amino group, N,N-di(n-pentyl)amino group, N,N-di(iso-pentyl)amino group, N,N-di(neopentyl)amino group, N,N-di(n-hexyl)amino group, N,N-di(1-methylpropyl)amino group, N,N-di(1,2-dimethylpropyl)amino group, N-methyl-N-ethylamino group, N-ethyl-N-(n-propyl)amino group, N-ethyl-N-(iso-propyl)amino group, vinylamino group, allylamino group, (1-propenyl)amino group, iso-propenylamino group, (1-buten-1-yl) amino group, (1-buten-2-yl) amino group, (1-buten-3-yl)amino group, (2-buten-1-yl)amino group, (2-buten-2-yl)amino group, N,N-divinylamino group, N,N-diallylamino group, N,N-di(1-propenyl)amino group, N,N-di(iso-propenyl) amino group, N-vinyl-N-allylamino group, ethynylamino group, 1-propynylamino group, 2-propynylamino group, butynylamino group, pentynylamino group, hexynylamino group, N,N-diethynylamino group, N,N-di(1-propynyl)amino group, N,N-di(2-propynyl)amino group, N,N-dibutynylamino group, N,N-dipentynylamino group, N,N-dihexynylamino group, hydroxymethylamino group, 1-hydroxyethylamino group, 2-hydroxyethylamino group, 3-hydroxy-n-propylamino group, methylsulfonylamino group, ethylsulfonylamino group, n-propylsulfonylamino group, iso-propylsulfonylamino group, n-butylsulfonylamino group, tert-butylsulfonylamino group, vinylsulfonylamino group, allylsulfonylamino group, iso-propenylsulfonylamino group, iso-pentenylsulfonylamino group, ethynylsulfonylamino group, methylcarbonylamino group, ethylcarbonylamino group, n-propylcarbonylamino group, iso-propylcarbonylamino group, n-butylcarbonylamino group, tert-butylcarbonylamino group, vinylcarbonylamino group, allylcarbonylamino group, iso-propenylcarbonylamino group, iso-pentenylcarbonylamino group, ethynylcarbonylamino group etc.

Respectively preferable examples in the “C₁₋₆ alkylsulfonyl group which may optionally have substituents”, “C₂₋₆ alkenylsulfonyl group which may optionally have substituents”, “C₂₋₆ alkynylsulfonyl group which may optionally have substituents”, “C₁₋₆ alkylsulfinyl group which may optionally have substituents”, “C₂₋₆ alkenylsulfinyl group which may optionally have substituents” and “C₂₋₆ alkynylsulfinyl group which may optionally have substituents” include methylsulfonyl group, ethylsulfonyl group, n-propylsulfonyl group, iso-propylsulfonyl group, n-butylsulfonyl group, tert-butylsulfonyl group, vinylsulfonyl group, allylsulfonyl group, iso-propenylsulfonyl group, iso-pentenylsulfonyl group, ethynylsulfonyl group, methylsulfinyl group, ethylsulfinyl group, n-propylsulfinyl group, iso-propylsulfinyl group, n-butylsulfinyl group, tert-butylsulfinyl group, vinylsulfinyl group, allylsulfinyl group, iso-propenylsulfinyl group, iso-pentenylsulfinyl group, ethynylsulfinyl group etc.

Preferable examples in the “aralkyl group” and “heteroarylalkyl group” include benzyl group, phenethyl group, naphthylmethyl group, naphthylethyl group, pyridylmethyl group, pyridylethyl group, thienylmethyl group, thienylethyl group etc., preferable examples in the “aralkyloxy group” include benzyloxy group, phenethyloxy group, phenylpropoxy group, naphthylmethyloxy group, naphthylethyloxy group, naphthylpropyloxy group etc., and preferable examples in the “heteroarylalkyloxy group” include pyridylmethyloxy group, pyrazinylmethyloxy group, pyrimidinylmethyloxy group, pyrrolylmethyloxy group, imidazolylmethyloxy group, pyrazolylmethyloxy group, quinolylmethyloxy group, iso-quinolylmethyloxy group, fulfuryloxy group, thienylmethyloxy group, thiazolylmethyloxy group etc.

Preferable examples in the “C₃₋₈ cycloalkyl group which may optionally have substituents” and “C₃₋₈ cycloalkenyl group which may optionally have a substituent” include a C₃₋₈ cycloalkyl group (for example, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, and the like) and a C₃₋₈ cycloalkenyl group (for example, cyclopropenyl group, cyclopropenyl group, cyclobutenyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, and the like) which may be optionally substituted respectively by 1 or more groups selected from hydroxy group, a halogen atom, nitrile group, a C₁₋₆ alkyl group (for example, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, tert-butyl group, n-pentyl group, iso-pentyl group, neopentyl group, n-hexyl group etc.), a C₁₋₆ alkoxy group (for example, methoxy group, ethoxy group, n-propoxy group, iso-propoxy group, sec-propoxy group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, n-pentoxy group, iso-pentoxy group, sec-pentoxy group, tert-pentoxy group, n-hexoxy group etc.), a C₁₋₆ alkoxy C₁₋₆ alkyl group, an aralkyl group (for example, benzyl group, phenethyl group, naphthylmethyl group, naphthylethyl group etc.), and the like.

Preferable examples of the “5 to 14 membered non-aromatic heterocyclic group”, “C₆₋₁₄ aromatic hydrocarbocyclic group” and “5 to 14 membered aromatic heterocyclic group” in “an optionally substituted 5 to 14 membered non-aromatic heterocyclic group”, “an optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group” and “an optionally substituted 5 to 14 membered aromatic heterocyclic group” are not specifically limited, but the more preferable “5 to 14 membered non-aromatic heterocyclic group” includes pyrrolidinyl group, pyrrolinyl group, piperidinyl group, piperazinyl group, imidazolinyl group, pyrazolyl group, imidazolidinyl group, morpholinyl group, phthalimidoyl group, a succinimidoyl group etc.; the more preferable “C₆₋₁₄ aromatic hydrocarbocyclic group” includes phenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, biphenyl group etc.; the more preferable “5 to 14 membered aromatic heterocyclic group” includes pyrrolyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, pyrazolyl group, imidazolyl group, thienyl group, furyl group, thiazolyl group, iso-thiazolyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, carbazolyl group, dioxinyl group etc., respectively. Further, preferable examples of the “substituents” in the “which may optionally have substituents” include 1 or more groups selected from hydroxy group, a halogen atom (for example, fluorine atom, chlorine atom, bromine atom, iodine atom etc.), nitrile group, a C₁₋₆ alkyl group (for example, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, tert-butyl group, n-pentyl group, iso-pentyl group, neopentyl group, n-hexyl group etc.), a C₁₋₆ alkoxy group (methoxy group, ethoxy group, n-propoxy group, iso-propoxy group, sec-propoxy group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, n-pentoxy group, iso-pentoxy group, sec-pentoxy group, tert-pentoxy group, n-hexoxy group etc.), a C₁₋₆ alkoxy C₁₋₆ alkyl group (for example, methoxymethyl group, methoxyethyl group, ethoxymethyl group, ethoxyethyl group etc.), an aralkyl group (for example, benzyl group, phenethyl group, naphthylmethyl group, naphthylethyl group etc.), and the like. Further, an amino group, a cyclic amino group, and an alkoxyamino group which may optionally have substituents are also preferable as the substituents.

Q indicates NH, O or S in the formula (I), and is preferably O.

The groups indicated by X, X¹, X² and X³ in the present invention indicate the same or different single bonding, an optionally substituted C₁₋₆ alkylene group, an optionally substituted C₂₋₆ alkenylene group, an optionally substituted C₂₋₆ alkynylene group, —O—, —S—, —CO—, —SO—, —SO₂—, —N(R⁶)—, —N(R⁷)—CO—, —CO—N(R⁸)—, —N(R⁹)—CH₂—, —CH₂—N(R¹⁰)—, —CH₂—CO—, —CO—CH₂—, —N(R¹¹)—S(O)_(m)—, —S(O)_(n)—N(R¹²)—, —CH₂—S(O)_(p)—, —S(O)_(q)—CH₂—, —CH₂—O—, —O—CH₂—, —N(R¹³)—CO—N(R¹⁴)— or —N(R¹⁵)—CS—N(R¹⁶)— (wherein R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ indicate hydrogen atom, a C₁₋₆ alkyl group or a C₁₋₆ alkoxy group; and m, n, p and q indicates an integer of 0, 1 or 2 independently).

Specifically preferable examples in the above “C₁₋₆ alkylene group” is an alkenylene group having 1 to 3 carbons, and examples include —CH₂—, —(CH₂)₂—, —CH(CH₃)—, —(CH₂)₃—, —CH(CH₃)—CH₂—, —CH₂—CH(CH₃)— etc. Specifically preferable examples in the above “C₂₋₆ alkenylene group” is an alkenylene group having 2 or 3 carbons, and examples include —CH═CH—, —CH═CH—CH₂—, —CH₂—CH═CH—, —C(CH₃)═CH—, —CH═C(CH₃)— etc. Specifically preferable examples in the above “C₂₋₆ alkynylene group” is an alkynylene group having 2 or 3 carbons, and examples include —C≡C—, —C≡C—CH₂—, —CH₂—C≡C— etc. Preferable examples in the substituents indicated by X, X¹, X² and X³ in the “C₁₋₆ alkylene group which may optionally have substituents”, “C₂₋₆ alkenylene group which may optionally have substituents” or “C₂₋₆ alkynylene group which may optionally have substituents” include a halogen atom (for example, fluorine atom, chlorine atom, bromine atom, iodine atom etc.), hydroxy group, nitrile group, nitro group etc.

The preferable C₁₋₆ alkyl group represented by the R⁶, R⁷, R⁸, R⁹, R¹⁰, R¹¹, R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ includes methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, tert-butyl group etc., and the preferable C₂₋₆ alkyoxy group includes methoxy group, ethoxy group, n-propoxy group, iso-propoxy group, n-butoxy group, tert-butoxy group etc.

The preferable group in X, X¹, X² and X³ in the above formula (I) includes single bond, —CH₂—, —CH(OH)—, —CH(CN)—, —CH₂—CH₂—, —CH(OH)—CH₂—, —CH(CN)—CH₂—, —CH₂—CH(OH)—, —CH₂—CH(CN)—, —CH═CH—, —CH═CH—CH₂—, —CH═CH—CH(OH)—, —CH═CH—CH(CN)—, —CH(OH)—CH═CH—, —CH(CN)—CH═CH—, —C≡C—, —O—, —S—, —SO—, —SO₂—, —CO—, —NH—CO—NH—, —NH—CS—NH—, and the like; the more preferable group includes single bond, —CH₂—, —CH(OH)—, —CH(CN)—, —CH₂—CH₂—, —CH(OH)—CH₂—, —CH(CN)—CH₂—, —CH₂—CH(OH)—, —CH₂—CH(CN)—, —CH═CH—, —C≡C—, —CO—, and the like; the further preferable group are —CH₂—, —CH(OH)—, —CO—, and a single bond is most preferable.

The preferable mode of in the compound according to the present invention represented by the formula:

(wherein Q, R¹, R², R³, R⁴ and R⁵ have the same meanings as defined above), a salt thereof or hydrates thereof is not specifically limited. Among them, the preferable mode includes the compound, a salt thereof or hydrates thereof, wherein R¹ (namely, 1-position of a pyridone ring) is a group represented by the formula —X-A (X and A have the same meanings as defined above), two of the residual R², R³, R⁴ and R⁵ are a group represented by the formula —X-A (X and A have the same meanings as defined above), and the other two are hydrogen atom, a halogen atom or a C₁₋₆ alkyl group; namely, the compound represented by the formula:

(wherein Q, X¹, X², X³, A¹, A², A³, R¹⁷ and R¹⁸ have the same meanings as defined above), a salt thereof or hydrates thereof. The more preferable mode includes the compound, a salt thereof or hydrates thereof, wherein Q is oxygen in the above formula (II); namely, the pyridone compound represented by the formula:

(wherein X¹, X², X³, A¹, A², A³, R¹⁷ and R¹⁸ have the same meanings as defined above), a salt thereof or hydrates thereof. The further preferable mode includes the compound, a salt thereof or hydrates thereof, wherein R¹⁷ and R¹⁸ are hydrogen atoms in the above formula (III); namely, 1,3,5-substituted pyridone compound represented by the formula:

(wherein X¹, X², X³, A¹, A² and A³ have the same meanings as defined above), a salt thereof or hydrates thereof. The most preferable mode includes the compound, a salt thereof or hydrates thereof, wherein X¹, X² and X³ are single bonds in the above formula (IV); namely, 1,3,5-substituted pyridone compound represented by the formula:

(wherein A¹, A² and A³ have the same meanings as defined above), a salt thereof or hydrates thereof. The preferable groups in A¹, A² and A³ are as in the above exemplification.

There is no particular limitation for “a salt” in the specification of the present application so far as it forms a salt with the compound of the present invention and is a pharmacologically acceptable one. Preferably, salt with a hydrogen halide (such as hydrofluoride, hydrochloride, hydrobromide or hydroiodide), salt with an inorganic acid (such as sulfate, nitrate, perchlorate, phosphate, carbonate or bicarbonate), salt with an organic carboxylic acid (such as acetate, trifluoroacetate, oxalate, maleate, tartrate, fumarate or citrate), salt with an organic sulfonic acid (such as methanesulfonate, trifluoromethanesulfonate, ethanesulfonate, benzenesulfonate, toluenesulfonate or camphor-sulfonate), salt with an amino acid (such as aspartate or glutamate), salt with a quaternary amine, salt with an alkaline metal (such as sodium salt or potassium salt) and salt with an alkaline earth metal (such as magnesium salt or calcium salt). More preferred examples of the “pharmacologically acceptable salt” are hydrochloride, oxalate etc.

Representative manufacturing methods for the compounds represented by the above formula (I) according to the present invention will be illustrated as hereunder.

Production Process 1

Wherein A¹, A² and A³ may be the same as or different from each other and each indicates optionally substituted C₃₋₈ cycloalkyl group, the C₃₋₈ cycloalkenyl group, 5- to 14-membered non-aromatic heterocyclic group, C₆₋₁₄ aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group; Z¹ and Z² are the same as or different from each other and each represents halogen atoms; and X¹, X² and X³ have the same meanings as defined above. In the present production process, the most preferable A¹, A² and A³ are optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group. The above-mentioned production process 1 is a process of producing the compound (I-1) which is related to the present invention, by introducing A¹, A² and A³ in the pyridone compound which has the substituents Z¹ and Z². Namely, the compound (I-1) which is related to the present invention can be produced by the process that the pyridone compound (i) which has the substituents Z¹ and Z² and an aryl boronic acid derivative are provided to a coupling reaction using a copper compound to obtain the compound (ii), and then A² and A³ are introduced in the compound (ii) by carrying out the coupling reaction with an organometallic reagent using a transition metal catalyst or an organoboron compound, preferably carrying out the coupling reaction with an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative, using a palladium catalyst. The preferable aryl boronic acid derivative which is used for the reaction of producing the compound (ii) differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but the aryl boronic acid derivative which has a group corresponding to A¹ introduced as an aryl group, such as preferably a phenyl boronic acid derivative which may be optionally substituted, a heterocyclic boronic acid derivative which may be optionally substituted, or the like, can be used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. When the base is used in the coupling reaction of the present reaction, it is not specifically limited, and preferably triethylamine, pyridine, tetramethylethylenediamine and the like. Preferable examples of the copper compound used include copper acetate, di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine)copper (II)]chloride, and the like. The more preferable result can be obtained by carrying out the reaction of producing the compound (ii) from (i) in the presence of a solvent. The solvent used differs usually depending on a starting raw material, a reagent and the like, and is not specifically limited so long as it is inert to the reaction and dissolves the raw material in a certain amount. Preferably, dichloromethane, tetrahydrofuran, ethyl acetate and the like may be proposed. Further, the present reaction is preferably carried out under atmosphere of oxygen or in air flow, and good results (the reduction of the reaction time and the improvement of yield etc.) can be obtained thereby. The aryl tin compound, the aryl zinc compound or the aryl boronic acid derivative which is used for the reaction of producing the compound (I-1) by introducing A² and A³ in the compound (ii) differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but a phenyl tin compound which may be optionally substituted, a heterocyclic tin compound which may be optionally substituted, a phenyl zinc compound which may be optionally substituted, a heterocyclic zinc compound which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted, an aryl tin compound, an aryl zinc compound or an aryl boronic acid derivative which has a group corresponding to A¹ or A² introduced as an aryl group, can be preferably used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, it is not specifically limited, unless the reaction is not disturbed, and preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used is not specifically limited in usual, and known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are preferably mentioned. The reaction of producing the compound (I-1) by introducing A² and A³ in the compound (ii) is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property, and the solvent used is not specifically limited in usual, but dimethylformamide, toluene, xylene, benzene and the like are preferably mentioned. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. In addition to them, the compound (I-1) related to the present invention can be also produced by the process that the pyridone compound (iii) after introduction of A¹ and A^(2a) is introduced to an organoboron compound or an organometallic reagent, preferably a boronic acid derivative, a tin compound or a zinc compound, and the derivative is provided to a coupling reaction with a halogenated aryl derivative using a transition metal catalyst, preferably a palladium catalyst.

Production Process 2

Wherein X¹, X², X³, A¹, A², A³, Z¹ and Z² indicate the same meanings as defined above; and Z³ indicates a protecting group of hydroxy group of an alcohol (for example, a C₁₋₆ alkyl group, a benzyl group and the like). In the present production process, the most preferable A¹, A² and A³ are optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group. The compound (I-1) according to the present invention can be also produced by introducing A¹, A² and A³ to the pyridine compound (iv) having substituents Z¹ and —OZ³. The reaction of producing the compound (v) by introducing A³ to the compound (iv) can be carried out by providing to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing the compound (iv) to the coupling reaction with an aryl tin derivative, an aryl zinc derivative, or an aryl boronic acid derivative in the presence of a base, using a palladium catalyst. The aryl tin derivative, the aryl zinc derivative or the aryl boronic acid derivative used for the present reaction differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted, an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative which has a group corresponding to A³ introduced as an aryl group, can be preferably used. The base used differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used is not specifically limited in usual, and known palladium complex such as tetrakistriphenylphosphine palladium and the like are preferably mentioned. Further, the present reaction is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property. The solvent used differs depending on a starting material, a solvent used and the like, and those which dissolve the starting material to a certain degree are not specifically limited unless the reaction is not disturbed, but dimethylformamide, toluene, xylene, benzene and the like are preferably mentioned. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. The reaction of producing the pyridone compound (vi) by de-protecting of Z³ can be carried out by some known processes, and for example, a conventional process described in T. W. Greene and P. G. M. Wuts “Protecting groups in organic synthesis 2^(nd) Edition (1991)” is mentioned as the representative process. The reaction of producing the pyridone compound (vii) by introducing the substituent Z² to the compound (vi) can be usually carried out by a known halogenation method. The halogenating agent differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but a bromination agent such as acetic acid-bromine, N-bromosuccinimide or the like, an iodination agent such as iodine, N-iodosuccinimide or the like, and the like are preferably used. The compound (viii) can be produced by providing the compound (vii) and an aryl boronic acid derivative to the coupling reaction using a copper compound and by introducing A¹. The aryl boronic acid derivative used is not specifically limited in usual, and an aryl boronic acid derivative which may be optionally substituted, a heterocyclic boronic acid derivative which may be optionally substituted, and an aryl boronic acid derivative which has a group corresponding to A¹ introduced as an aryl group, can be used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, the base is not specifically limited, and preferably triethylamine, pyridine, tetramethylethylenediamine and the like. Preferable examples of the copper compound used include copper acetate, di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine)copper (II)]chloride, and the like. Further, the present reaction is preferably carried out in the presence of a solvent. The solvent used differs usually depending on a starting raw material, a reagent and the like, and is not specifically limited so long as it is inert to the reaction and dissolves the starting materials in a certain amount, but is preferably dichloromethane, tetrahydrofuran, ethyl acetate and the like. Further, the present reaction is preferably carried out under atmosphere of oxygen or in air flow, and good results (the reduction of the reaction time and the improvement of yield etc.) can be obtained thereby. The final step of producing the compound (I-1) related to the present invention can be carried out by providing the compound (viii) to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing to the coupling reaction with an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative using a palladium catalyst, and by introducing A² to the compound (viii). The aryl tin derivative, the aryl zinc derivative or the aryl boronic acid derivative which is used is not specifically limited usually, and a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted, an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative which has a group corresponding to A² introduced as an aryl group, can be preferably used. The sequential reaction of producing (I-1) from (viii) which was mentioned in the production process 2 can also obtain a preferable result in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, it is not specifically limited, unless the reaction is not disturbed, and preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used is not specifically limited in usual, and known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are preferably mentioned. Further, a more preferable result can be obtained by carrying out the present reaction in the presence of a solvent, and the solvent used is not specifically limited in usual, and the solvent used differs depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. In addition to them, the compound (I-1) related to the present invention can be also produced by the process that the pyridone compound (viii) after introduction of A^(1a) is introduced to an organoboron compound or an organometallic reagent, preferably a boronic acid derivative, a tin compound or a zinc compound, and the derivative is provided to a coupling reaction with a halogenated aryl derivative using a transition metal catalyst, preferably a palladium catalyst.

Production Process 3

Wherein X¹, X², X³, A¹, A², A³, Z¹ and Z² have the same meanings as defined above, and each of the most preferable group of A¹, A² and A³ in the present production process is the C₆₋₁₄ aromatic hydrocarbocyclic group or the 5 to 14 membered aromatic heterocyclic group which may optionally have substituents, respectively. The compound (I-1) according to the present invention can be also produced by introducing A¹, A² and A³ to 2-hydroxypyridine. The reaction of producing the compound (ix) can be conducted by providing an aryl boronic acid derivative to the coupling reaction using a copper compound, the Ullmann reaction with a halogenated aryl derivative, or a substitution reaction for the halogenated aryl derivative and by introducing A¹ to 2-hydroxypyridine. The aryl boronic acid derivative used in the coupling reaction differs usually depending on a starting raw material, a reagent and the like, and is not specifically limited unless the reaction is not disturbed. The aryl boronic acid derivative having a group corresponding to A¹ introduced as an aryl group such as a phenyl boronic acid derivative which may be optionally substituted, a heterocyclic boronic acid derivative which may be optionally substituted, and the like can be preferably used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, the base is not specifically limited unless the reaction is not disturbed, but is preferably triethylamine, pyridine, tetramethylethylenediamine and the like. Preferable examples of the copper compound used include copper acetate, di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine) copper (II)]chloride, and the like. Further, the present reaction is preferably carried out in the presence of a solvent. The solvent used differs usually depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably dichloromethane, tetrahydrofuran, ethyl acetate and the like. Further, the present reaction is preferably carried out under atmosphere of oxygen or in air flow, and good results (the reduction of the reaction time and the improvement of yield etc.) can be obtained thereby. The Ullmann reaction is carried out at 60° C. to under refluxing by heating, preferably 100 to 200° C. in the presence of a base such as potassium carbonate, sodium carbonate or sodium acetate, using copper or a copper compound such as copper iodide, copper chloride, copper bromide or the like, which is not specifically limited usually. The solvent used differs depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, tetralin, dichlorobenzene, nitrobenzene and the like. The substitution reaction with the halogenated aryl derivative is not specifically limited, but carried out under ice-cooling to under refluxing by heating, preferably at room temperature to 60° C. in a solvent such as tetrahydrofuran or dimethylformamide or the like, using a base such as potassium carbonate, sodium hydride, potassium hydride, sodium butoxide, or potassium butoxide or the like. The reaction of producing the compound (x) by introducing the substituent Z¹ to the compound (ix) can be usually carried out by known halogenation method. The halogenating agent used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited, unless the reaction is not disturbed, but a bromination agent such as acetic acid-bromine, N-bromosuccinimide or the like, an iodination agent such as iodine, N-iodosuccinimide or the like, and the like are preferably used. The reaction of producing the compound (xi) by introducing A³ to the compound (x) can be usually carried out by providing the compound (x) to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing it to the coupling reaction with an aryl tin derivative, an aryl zinc derivative, or an aryl boronic acid derivative in the presence of a base, using a palladium catalyst. The aryl tin derivative, the aryl zinc derivative or the aryl boronic acid derivative which is used for the present reaction is not specifically limited usually, but an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative having a group corresponding to A³ introduced as an aryl group such as a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted, can be preferably used. The base used differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used is not specifically limited in usual, and known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are preferably mentioned. Further, the present reaction is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property. The solvent used differs depending on a starting material, a solvent used and the like, and the solvent which does not disturb the reaction and dissolves the starting material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. The reaction of producing the compound (xii) by introducing the substituent Z² to the compound (xi) can be usually carried out by known halogenation method. The halogenating agent used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited, unless the reaction is not disturbed, but a bromination agent such as acetic acid-bromine, N-bromosuccinimide or the like, an iodination agent such as iodine, N-iodosuccinimide or the like, and the like are preferably used. The final step of producing the compound (I-1) related to the present invention can be carried out by providing the compound (xii) to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing it to the coupling reaction with an aryl tin derivative, an aryl zinc derivative or an aryl boronic acid derivative using a palladium catalyst, and by introducing A² to the compound (xii). The aryl tin derivative, the aryl zinc derivative or the aryl boronic acid derivative which is used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed. The aryl tin derivative, aryl zinc derivative or aryl boronic acid derivative having a group corresponding to A^(2a) introduced as an aryl group, such as a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted, can be used. At this time, the base used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but is preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are mentioned. Further, a more preferable result can be obtained by carrying out the present reaction in the presence of a solvent, and the solvent used is not specifically limited in usual, but is preferably dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. In addition to them, the compound (I-1) related to the present invention can be also produced by the process that the compound (xii) is introduced to an organoboron compound or an organometallic reagent, preferably a boronic acid derivative, a tin compound or a zinc compound or the like, and the derivative is provided to a coupling reaction with a halogenated aryl derivative using a transition metal catalyst, preferably a palladium catalyst.

Production Process 4

Wherein X¹, X², X³, A¹, A², A³, Z¹, Z¹ and Z³ have the same meanings as defined above, and each of the most preferable group of A¹, A² and A³ in the present production process is the C₆₋₁₄ aromatic hydrocarbocyclic group or the 5 to 14 membered aromatic heterocyclic group which may optionally have substituents, respectively. The compound (I-1) related to the present invention can be also produced by introducing A¹, A² and A³ to the compound (xiii) having the substituents Z¹, Z² and —OZ³. The reaction of producing the compound (xiv) by introducing A² to the compound (xiii) can be conducted by providing the compound (xiii) to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing it to the coupling reaction with an aryl tin derivative, an aryl zinc derivative, or an aryl boronic acid derivative in the presence of a base, using a palladium catalyst. The aryl tin compound, aryl zinc compound or aryl boronic acid derivative used in the present reaction differs usually depending on a starting raw material, a reagent and the like, and is not specifically limited unless the reaction is not disturbed. The ary tin compound, aryl zinc compound or aryl boronic acid derivative having a group corresponding to A² introduced as an aryl group, such as a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted and the like can be used. The base used differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but is cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are mentioned. Further, the present reaction is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property. The solvent used differs depending on a starting material, a solvent used and the like, and the solvent which does not disturb the reaction and dissolves the starting material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. The reaction of producing the compound (xv) by introducing the substituent A³ to the compound (xiv) can be carried out by providing the compound (xiv) to the coupling reaction with an organometallic reagent or an organoboron compound using a transition metal catalyst, preferably by providing it to the coupling reaction with an aryl tin compound, aryl zinc compound, or aryl boronic acid derivative in the presence of a base, using a palladium catalyst. The aryl tin compound, aryl zinc compound or aryl boronic acid derivative used in the present reaction differs usually depending on a starting raw material, a reagent and the like, and is not specifically limited unless the reaction is not disturbed. The aryl tin compound, aryl zinc compound or aryl boronic acid derivative having a group corresponding to A³ introduced as an aryl group, such as a phenyl tin derivative which may be optionally substituted, a heterocyclic tin derivative which may be optionally substituted, a phenyl zinc derivative which may be optionally substituted, a heterocyclic zinc derivative which may be optionally substituted, a phenyl boronic acid derivative, a heterocyclic boronic acid derivative which may be optionally substituted and the like can be preferably used. The base used differs depending on a starting raw material, a solvent used and the like and is not specifically limited unless the reaction is not disturbed, but is preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. The palladium catalyst used is not specifically limited usually, but known palladium catalysts such as tetrakistriphenylphosphine palladium and the like are preferably mentioned. Further, the present reaction is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property. The solvent used differs depending on a starting material, a solvent used and the like, and the solvent which does not disturb the reaction and dissolves the starting material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C. The reaction of producing the pyridone compound (xvi) by de-protecting the removal of Z³ can be carried out by some known processes, and for example, a conventional process described in T. W. Greene and P. G. M. Wuts “Protecting groups in organic synthesis 2^(nd) Edition (1991)” is mentioned as the representative process. The final step of producing the compound (I-1) related to the present invention can be conducted by providing the compound (xvi) and an aryl boronic acid derivative to the coupling reaction using a copper compound, the Ullmann reaction with a halogenated aryl derivative, or a substitution reaction for the halogenated aryl derivative and by introducing A¹. The aryl boronic acid derivative used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed. The aryl boronic acid derivative having a group corresponding to A¹ introduced as an aryl group, such as a phenyl boronic acid derivative which may be optionally substituted, a heterocyclic boronic acid derivative which may be optionally substituted and the like can be used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, the base is not specifically limited unless the reaction is not disturbed, but is preferably triethylamine, pyridine, tetramethylethylenediamine and the like. Preferable examples of the copper compound used include copper acetate, di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine) copper (II)]chloride, and the like. Further, the present reaction is preferably carried out in the presence of a solvent. The solvent used differs usually depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably dichloromethane, tetrahydrofuran, ethyl acetate and the like. Further, the present reaction is preferably carried out under atmosphere of oxygen or in air flow, and good results (the reduction of the reaction time and the improvement of yield etc.) can be obtained thereby. The Ullmann reaction is carried out at 60° C. to under refluxing by heating, preferably 100 to 200° C. in the presence of a base such as potassium carbonate, sodium carbonate or sodium acetate, using copper or a copper compound such as copper iodide, copper chloride, copper bromide or the like, which is not specifically limited usually. The solvent used differs depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably dimethylformamide, toluene, xylene, tetralin, dichlorobenzene, nitrobenzene and the like. The substitution reaction with the halogenated aryl derivative is not specifically limited, but carried out under ice-cooling to under refluxing by heating, preferably at room temperature to 60° C. in a solvent such as tetrahydrofuran or dimethylformamide or the like, using a base such as potassium carbonate, sodium hydride, potassium hydride, sodium butoxide, or potassium butoxide or the like.

In the above production process, the production intermediate represented by the formula:

(wherein A^(1a), A^(3a) and W have the same meanings as defined above) can be also produced by the following method (Production process 5).

Production Process 5

W, W′ and W″ in the above formula indicate the same or different halogen atom, and the most preferable atom is bromine atom.

The compound (XII) can be easily produced according to known methods or corresponding methods, and further, can be easily obtained as a commercially available substance. The step of producing the compound (XI) from the compound (XII) is a step of reacting the compound (XII) with the base represented by the formula Z³OM (M indicates an alkali metal atom). The base differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but is preferably sodium alkoxide, and preferably sodium methoxide, sodium ethoxide and the like in particular. In this case, it is preferable to carry out the reaction in an alcohol corresponding to the alkoxide used, and for example, it is preferable to carry out in methanol in case of using sodium methoxide and ethanol in case of using sodium ethoxide, etc.

The step of producing the compound (X) from the compound (XI) is a step of reacting the compound (XI) with trimethoxyborane in the presence of a base. The base used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but is preferably n-butyllithium and the like. The solvent used differs depending on a starting raw material, a solvent used and the like, and the solvent which does not disturb the reaction and dissolves the starting material to a certain degree is not specifically limited, but is preferably ethers such as tetrahydrofuran, and the like. When n-butyllithium is used as a base, the reaction can be terminated by an acid such as hydrochloric acid, or the like according to a conventional method.

The step of producing the compound (IX) from the compound (X) is a step of carrying out the coupling reaction of the compound (X) with a halogenoaryl or a halogenoheteroaryl which corresponds to the substituent A^(3a) introduced, in the presence of a base and a palladium catalyst and producing the compound (IX). The palladium catalyst used is not specifically limited, but palladium acetate/triphenylphosphine catalyst and the like can be mentioned as the preferable example. The base used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but is preferably cesium carbonate, sodium carbonate, potassium carbonate, and the like. Further, the present step is preferably carried out in the presence of a solvent from the viewpoints of operation property and stirring property. The solvent used differs depending on a starting raw material, a solvent used and the like, and the solvent which does not disturb the reaction and dissolves the starting material to a certain degree is not specifically limited, but is preferably 1,2-dimethoxyethane, dimethylformamide, toluene, xylene, benzene and the like. The reaction temperature is not specifically limited, and usually room temperature, or under refluxing by heating, and preferably 50 to 160° C.

The step of producing the compound (VIII) from the compound (IX) is a step of submitting to the reaction of protecting the removal of Z³ of the compound (IX). The present step can be carried out by some known processes, and for example, a method of refluxing the compound (IX) by heating in the presence of an acid (preferably, hydrochloric acid and the like) is mentioned. Additionally, for example, a conventional process described in T. W. Greene and P. G. M. Wuts “Protecting groups in organic synthesis 2^(nd) Edition (1991)” is mentioned as the representative process.

The step of producing the compound (VI) from the compound (VIII) is a step of submitting the compound (VIII) and the aryl boronic acid derivative represented by the formula A^(1a)B (OH)₂ to the coupling reaction using a copper compound and introducing A^(1a). The aryl boronic acid derivative used is not specifically limited usually. The aryl boronic acid derivative which has a group corresponding to A^(1a) introduced as an aryl group, such as a phenyl boronic acid derivative which may be optionally substituted, a heterocyclic boronic acid derivative which may be optionally substituted and the like can be used. Preferable result can be also obtained by the present reaction in the presence of a base, and at this time, the base used differs depending on a starting raw material, a solvent used and the like. Further, the base is not specifically limited unless the reaction is not disturbed, but is preferably triethylamine, pyridine, tetramethylethylenediamine and the like. Preferable examples of the copper compound used include copper acetate, di-μ-hydroxobis[(N,N,N′,N′-tetramethylethylenediamine)copper (II)]chloride, and the like. Further, the present reaction is preferably carried out in the presence of a solvent. The solvent used differs usually depending on a starting raw material, a reagent and the like, and the solvent which does not disturb the reaction and dissolves the starting raw material to a certain degree is not specifically limited, but is preferably N,N-dimethylformamide, dichloromethane, tetrahydrofuran, ethyl acetate and the like. Further, the present reaction is preferably carried out under atmosphere of oxygen or in air flow, and good results (the reduction of the reaction time and the improvement of yield etc.) can be obtained thereby.

The step of producing the compound (VII) from the compound (VI) is a step of submitting the compound (VI) to the halogenation reaction. The halogenation reaction can be usually carried out by known halogenation methods. The halogenating agent used differs depending on a starting raw material, a solvent used and the like, and is not specifically limited unless the reaction is not disturbed, but is preferably a bromination agent such as acetic acid-bromine, N-bromosuccinimide or the like, an iodination agent such as iodine, N-iodosuccinimide or the like, and the like.

According to the above production process 5, the production intermediates (VI) and (VII) can be produced in high yield. Further, when the production intermediates the production intermediates of the compounds related to the present invention are produced according to the production processes, the contamination of a copper compound to the final product can be easily prevented, and the compounds of the present invention satisfying the point of safety (toxicity and the like) can be provided. Accordingly, the production processes are extremely excellent production processes from the viewpoints of yield and safety, experimentally and industrially. The novel compound represented by the formula:

(wherein A^(1a) and A^(3a) are the same as or different from each other and each indicates a C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14 membered aromatic heterocyclic group which may optionally have a substituent, respectively; and R indicates hydrogen atom or a halogen atom) or a salt thereof is useful as the production intermediate in the production of the compound (I) according to the present invention or a salt thereof. In the formula (XIII), the preferable examples in A^(1a) and A^(3a) may be the same as or different from each other, and each includes phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, iso-quinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group, carbazolyl group etc., which may optionally have substituents, respectively. The more preferable examples may be the same as or different from each other, and each includes a phenyl group, pyridyl group, pyrimidinyl group, thienyl group, furyl group etc., which may optionally have substituents, respectively. Further, the preferable examples in R in particular are hydrogen atom or bromine atom.

The substituents on A¹, A² and A³ in the compound represented by the formula:

(wherein Q, X¹, X², X³, A¹, A² and A³ have the same meanings as defined above; Y¹, Y² and Y³ indicates the same or different substituents; and each of the most preferable group in A¹, A² and A³ is a C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14 membered aromatic heterocyclic group which may optionally have substituents, respectively) can be converted by various reactions. For example, the representative processes are as below. That is, various reactions are known for changing to a functional group from a nitro group when (1) Y¹, Y² and/or Y³ are/is nitro group(s) and, although there is no particular limitation for the method and for the resulting substance, a method of changing to an amine derivative by a reduction reaction may be exemplified. Although there is usually no particular limitation for the reduction condition, preferred conditions are a method where iron, zinc or tin is used under acidic conditions, a hydrogenation method where palladium, rhodium, ruthenium, platinum or a complex thereof is used as a catalyst. When the amine derivative produced by the said reduction reaction is used, it is possible to further change to an amide compound, a carbamate compound, a sulfonamide compound, a halogen compound, a substituted amine compound etc., easily. (2) When Y¹, Y² and/or Y³ are/is alkoxy group(s), an example for changing to a functional group from an alkoxy group is a method to change to an alcohol derivative by means of deprotection. The alcohol derivative which is prepared by the said method may be easily changed to an ester compound by a dehydrating condensation with carboxylic acid derivative or by a reaction with an acid chloride or may be easily changed to an ether compound by a Mitsunobu reaction or by a condensation reaction with a halogen compound. (3) When Y¹, Y² and/or Y³ are/is aldehyde group(s), various reactions are known for changing to a functional group from an aldehyde group and, although there is no particular limitation for the method therefor and the resulting substance by the change, an example is a method of changing to a carboxylic acid derivative by an oxidation reaction. The carboxylic acid derivative prepared by the said method may be easily changed further to an ester compound, a ketone compound, etc. In addition, starting from the said carboxylic acid derivative, it is possible to easily manufacture an alcohol derivative by a reduction reaction, an amine derivative by a reductive amination reaction, a secondary alcohol compound by an addition reaction with an organic metal reagent and various alkyl derivatives by a Wittig reaction. (4) When Y¹, Y² and/or Y³ are/is halogen atom(s), an example for changing to a functional group from a halogen atom as a substituent is a method of changing to a nitrile derivative by a substitution reaction. Besides the above, it is also possible to easily change to various kinds of compounds via, for example, an organolithium compound, an organomagnesium compound, an organotin compound or an organoboronic acid derivative etc.

The above-mentioned methods is the method for the manufacture of the compound (I) of the present invention. The starting compound in the above-mentioned methods may form a salt or a hydrate and there is no particular limitation for such salt and hydrate so far as they do not inhibit the reaction. When the compound (I) of the present invention is obtained in a free substance, it may be changed to a state of a salt by conventional methods. Further, various isomers (for example, a geometrical isomer, an enantiomer based on an asymmetric carbon, a rotamer, a stereoisomer, a tautomer, and the like) which are obtained for the compound (I) related to the present invention are purified by using usual separation procedures, for example, such as recrystallization, a diastereomer salt method, an enzymolysis method, various chromatographies (for example, thin layer chromatography, column chromatography, gas chromatography, and the like), and can be separated.

The compound of the present invention represented by the above formula (I), a salt thereof or hydrates thereof may be made into pharmaceutical preparations such as tablets, diluted powder, fine granules, granules, coated tablets, capsules, syrup, troche, inhalation preparation, suppositories, injections, ointments, eye ointments, eye drops, nasal preparations, ear drops, cataplasma or lotions by means of conventional methods. In the manufacture of the pharmaceutical preparations, it is possible to use commonly used fillers, binders, disintegrating agent, lubricants, coloring agents, corrigents and, if necessary, stabilizers, emulsifiers, absorption promoters, surfactant, pH adjusting agents, antiseptics, antioxidants, etc. and, after compounding with the ingredients commonly used as materials for the pharmaceutical preparations, it is made into pharmaceutical preparations by a common method. Examples of the components therefor are 1) animal and plant oil such as soybean oil, beef tallow or synthetic glyceride; 2) hydrocarbon such as liquid paraffin, squalane or solid paraffin; 3) ester oil such as octyldodecyl myristate or isopropyl myristate; 4) higher alcohol such as cetostearyl alcohol or behenyl alcohol; 5) silicone resin; 6) silicone oil; 7) surfactant such as polyoxyethylene fatty acid ester, sorbitan fatty acid ester, glycerol fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil or polyoxyethylene-polyoxypropylene block copolymer; 8) water-soluble high-molecular substance such as hydroxyethyl cellulose, polyacrylic acid, carboxyvinyl polymer, polyethylene glycol, polyvinylpyrrolidone or methylcellulose; 9) lower alcohol such as ethanol or isopropanol; 10) polyhydric alcohol such as glycerol, propylene glycol, dipropylene glycol or sorbitol; 11) saccharide such as glucose or sucrose; 12) inorganic powder such as silicic acid anhydride, aluminum magnesium silicate or aluminum silicate; 13) pure water and the like. Applicable examples of (1) a filler are lactose, corn starch, pure sugar, glucose, mannitol, sorbitol, crystalline cellulose, silicon dioxide etc.; those of (2) a binder are polyvinyl alcohol, polyvinyl ether, methyl cellulose, ethyl cellulose, gum arabic, tragacanth, gelatin, shellac, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, polyvinylpyrrolidone, polypropylene glycol-polyoxyethylene block copolymer, meglumine, calcium citrate, dextrin, pectin etc.; those of (3) a disintegrating agent are starch, agar, gelatin powder, crystalline cellulose, calcium carbonate, sodium bicarbonate, calcium citrate, dextrin, pectin, carboxymethyl cellulose calcium etc.; those of (4) a lubricant are magnesium stearate, talc, polyethylene glycol, silica, hydrogenated plant oil etc.; those of (5) a coloring agent are those which are allowed to add to pharmaceuticals; those of (6) a corrigent are cocoa powder, menthol, aromatic powder, peppermint oil, borneol and cinnamon powder; and those of (7) an antioxidant are those which are permitted to be added to pharmaceuticals, such as ascorbic acid, α-tocopherol and the like, are respectively used.

(1) In the manufacture of preparations for oral use, the compound of the present invention or a pharmacologically acceptable salt is mixed with a filler and, if necessary, further with a binder, a disintegrating agent, a lubricant, a coloring agent, a corrigent, etc. and the mixture is made into diluted powder, fine particles, granules, tablets, coated tablets, capsules, etc. by a common method. (2) In case of tablets and coated tablets, there is of course no problem that such tablets and granules are sugar-coated, gelatin-coated, or appropriately coated upon necessity. (3) In case of the manufacture of liquid preparations such as syrup, injection preparations and eye drops, a pH adjusting agent, a solubilizer, an isotonizing agent, etc. and, if necessary, a solubilizing aid, a stabilizer, buffer, suspending agent, antioxidant etc. are added, and then made into pharmaceutical preparations by a common method. It can be made as a freeze drying product, and a injections can be dosed in vena, subcutis, and muscle. Preferable examples in a suspending agent include methyl cellulose, polysorbate 80, hydroxyethyl cellulose, gum arabic, tragacanth powder, sodium carboxymethyl cellulose, polyoxyethylene sorbitan monolaurate, and the like; preferable examples in a resolving aid include polyoxyethylene hardened castor oil, polysorbate 80, nicotinic acid amide, polyoxyethylene sorbitan monolaurate, and the like; preferable examples in a stabilizer include sodium sulfite, meta sodium sulfite, ether, and the like; preferable examples in a preservative include methyl p-oxybenzoate, ethyl p-oxybenzoate, sorbic acid, phenol, cresol, chlorocresol and the like. Further, (4) in case of external use, there is no particular limitation for a method of manufacturing a pharmaceutical preparation, but a common method is used for the manufacture. Thus, with regard to a base material used, various materials which are commonly used for pharmaceuticals, quasi drugs, cosmetics, etc. may be used. Specific examples of the base material used are animal/plant oil, mineral oil, ester oil, waxes, higher alcohols, fatty acids, silicone oil, surfactant, phospholipids, alcohols, polyhydric alcohols, water-soluble high-molecular substances, clay minerals and pure water and, if necessary, it is possible to add pH adjusting agent, antioxidant, chelating agent, antiseptic antifungal, coloring agent, perfume, etc. If necessary, it is further possible to compound other components such as a component having a differentiation-inducing action, blood flow promoter, bactericide, anti-inflammatory agent, cell activator, vitamins, amino acid, moisturizer and keratin solubilizing agent.

Dose of the pharmaceutical agent according to the present invention varies depending upon degree of symptom, age, sex, body weight, dosage form, type of salt, sensitivity to the pharmaceuticals, specific type of the disease, etc. and, in the case of adults, the daily dose is usually about 30 μg to 10 g, preferably, 100 μg to 5 g or, more preferably, 100 μg to 100 mg in the case of oral administration while, in the case of administration by injection, it is usually about 30 μg to 1 g, preferably 100 μg to 500 mg or, more preferably, 100 μg to 30 mg. That is administered once daily or in several portions a day.

In accordance with the present invention, it is possible to provide a novel compound (I) which show an excellent inhibiting action to AMPA receptor and/or kainate receptor and are useful as pharmaceutical agents. Further, a useful production process for producing the compound or its salt and a production intermediate could be provided. According to this process, the compound relating to the present invention can be obtained in high yield, and the highly safe compound can be obtained. The compound (I) of the present invention suppress the neurotoxicity of excitatory neurotransmitters and is able to achieve an excellent neuroprotecting action as a pharmaceutical agent. Accordingly, the compounds of the present invention are useful as therapeutic, preventive and improving agents for various nervous diseases and are useful, for example, as therapeutic and preventive agents for acute neurodegenerative diseases (such as cerebrovascular disorders at acute stage, subarachnoid hemorrhage, head injury, spinal cord injury, neuropathy caused by hypoxia or hypoglycemia etc.), chronic neurodegenerative diseases (such as Alzheimer's disease, Parkinson's disease, Huntington's chorea, amyotrophic lateral sclerosis or spinocerebellar degeneration), epilepsy, hepatic encephalopathy, peripheral neuropathy, Parkinson's syndrome, spasticity, pain, neuralgia, schizophrenia, anxiety, drug abuse, nausea, vomiting, urinary disturbance, visual disturbance due to glaucoma, auditory disturbance due to antibiotics, food poisoning, infectious cerebrospinal meningitis (such as HIV cerebrospinal meningtitis), cerebrovascular dementia, or dementia or nervous symptoms due to meningitis. Further, the compound of the present invention is useful as an agent for treating or preventing demyelinating disorder (such as encephalitis, acute disseminated encephalomyelitis, multiple sclerosis, acute demyelinating polyneuropathy, Guillain Barre syndrome, chronic inflammatory demyelinating polyneuropathy, Marchifava-Bignami disease, central pontine myelinolysis, neuromyelitis optica, Devic syndrome, Balo disease, HIV-myelopathy, HTLV-myelopathy, progressive multifocal leucoencephalopathy and a secondary demyelinating disorder (such as CNS lupus erythematodes, polyarteritis nodosa, Sjogren syndrome, sarcoidosis and isolated cerebral vasulitis)).

EXAMPLES

The following Reference Examples, Examples and Test Examples are exemplary, and not intended to limit the present invention. One skilled in the art may make various variations of Reference Examples, Examples and Test Examples as well as claims of the invention to fully utilize the invention. These variations shall be included in claims of the invention.

Referential Example 1 5-Bromo-3-iodo-1,2-dihydropyridin-2-one

2-Amino-5-bromopyridine (CAS No. 1072-97-5) (300 g) was dissolved in a mixed solvent consisting of 1000 ml of acetic acid and 200 ml of water, 30 ml of concentrated sulfuric acid were gradually dropped thereinto under stirring. Then, 79.1 g of periodic acid hydrate and 176 g of iodine were added thereto, followed by stirring at 80° C. for 4 hours. To the reaction mixture were added periodic acid hydrate (40 g) andiodine (22 g), followed by further stirring at 80° C. for 2 hours. After cooling to room temperature, the reaction mixture was poured onto ice (3000 ml) and neutralized to pH 7.0 with 5N aqueous sodium hydroxide. The resulting crystals were collected by filtration, dissolved in a mixed solvent of ethyl acetate/diethyl ether, successively washed with aqueous sodium thiosulfate, water, 1N aqueous sodium hydroxide and brine, and dried over anhydrous magnesium sulfate. Then, the solvent was evaporated, to give 392 g of 2-amino-5-bromo-3-iodopyridine (yield: 76%). 2-Amino-5-bromo-3-iodopyridine (100 g) was gradually added to 300 ml of concentrated sulfuric acid under ice-cooling. After the reaction mixture was stirred at room temperature for 2 hours, it was ice-cooled again. 35 g of sodium nitrite were gradually added thereto, followed by stirring at room temperature for 3 days and nights. The reaction solution was poured onto ice (3000 ml) and neutralized to pH 4.0 with sodium hydroxide. The resulting crystals were collected by filtration, washed with water and warm air-dried at 60° C. for one day and night, to give 102 g (quantitative) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.60 (d, 1H), 8.14 (d, 1H).

Referential Example 2 5-Bromo-1-phenyl-3-iodo-1,2-dihydropyridin-2-one

5-Bromo-3-iodo-1,2-dihydropyridin-2-one (10.0 g) obtained in Referential Example 1, 10.0 g of phenylboronic acid and 8.1 g of copper acetate were suspended in 500 ml of dichloromethane. 15 ml of triethylamine were added thereto, followed by stirring at room temperature for 5 days and nights. To the reaction solution were added 200 ml of water and 50 ml of aqueous ammonia, followed by stirring vigorously. Then the insoluble matters were filtered off through Celite, the filtrate was extracted with dichloromethane, the extract was dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was recrystallized from ethyl acetate/hexane, to give 6.54 g (yield: 52%) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.34-7.38 (m, 2H), 7.44-7.52 (m, 3H), 7.53 (d, 1H), 8.10 (d, 1H).

Referential Example 3 5-Bromo-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

5-Bromo-1-phenyl-3-iodo-1,2-dihydropyridin-2-one (11.69 g) obtained in Referential Example 2, 8.0 g of 2-(2-cyanophenyl)-1,3,2-dioxaborinate and 16.0 g of cesium carbonate were suspended in 150 ml of dimethylformamide. 3.0 g of tetrakistriphenylphosphine palladium were added thereto, followed by stirring at 80° C. in nitrogen atmosphere for 2 hours. The reaction solution was poured into water, the mixture was extracted with ethyl acetate, the extract was successively washed with water and brine and dried over anhydrous magnesium sulfate. Then, the solvent was evaporated, and the residue was purified by a silica gel column chromatography (hexane/ethyl acetate system), followed by recrystallizing from ethyl acetate/hexane, to give 5.67 g (yield: 52%) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.42-7.54 (m, 6H), 7.61-7.65 (m, 4H), 7.66 (d, 1H), 7.74-7.77 (m, 1H).

Referential Example 4 5-(2-Pyridyl)-1,2-dihydropyridin-2-one

2,5-Diboromopyridine [CAS No. 624-28-2] (400 g) was added to 3500 ml of a 28% methanolic solution of sodium methoxide, the mixture was stirred at 60° C. for 3 hours and allowed to cool, the reaction solution was poured into 3 liters of water, the mixture was extracted with 9000 ml of diethyl ether, the extract was washed with a saturated saline solution for three times and dried over anhydrous magnesium sulfate and the solvent was evaporated in vacuo. The residue was dissolved in 2 liters of dimethylformamide, 900 g of tri-N-butyl-(2-pyridyl) tin [CAS No. 59020-10-9] and 20 g of tetrakistriphenylphosphinepalladium and mixture was stirred at 120° C. in a nitrogen atmosphere for 3 hours. The reaction solution was allowed to cool and poured into 3 liters of water, the mixture was extracted with 10 liters of diethyl ether, the extract was successively washed with a saturated sodium bicarbonate solution and a saturated saline solution and the solvent was evaporated in vacuo. A 48% aqueous solution (800 ml) of hydrogen bromide was added to the residue and the mixture was stirred at 110° C. for 3 hours. After allowing to cool, the reaction solution was washed with 3 liters of diethyl ether, poured into 2 liters of ice, adjusted to pH 11.0 with a 5N sodium hydroxide solution and washed with 3 liters of diethyl ether again. The aqueous layer was adjusted to pH 7.0 and extracted with dichloromethane. The crude crystals prepared by evaporating the solvent in vauco were washed with a mixed solvent consisting of diethyl ether and hexane to give 201.5 g (yield: 69%) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.72 (d, 1H), 7.20 (ddd, 1H), 7.50-7.54 (m, 1H), 7.73 (dt, 1H), 8.12-8.15 (m, 1H), 8.19 (dd, 1H), 8.60-8.64 (m, 1H).

Referential Example 5 3-Bromo-5-(2-pyridyl)-1,2-dihydropyridin-2-one

5-(2-Pyridyl)-1,2-dihydropyridin-2-one (201.5 g) obtained in Referential Example 4 was dissolved in 1300 ml of dimethylformamide, 208.3 g of N-bromosuccimide were added thereto and the mixture was stirred at room temperature for 2 hours. The reaction mixture was poured into 4 liters of ice water and the precipitate was filtered and dried with warm air at 50° C. for two days and nights to give 230 g (yield: 79%) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.26 (m, 1H), 7.52 (d, 1H), 7.75 (dt, 1H), 8.21 (d, 1H), 8.61-8.64 (m, 1H), 8.67 (d, 1H).

Referential Example 6 3-Bromo-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

Dichloromethane (300 ml) was added to 18.75 g of 3-bromo-5-(2-pyridyl)-1,2-dihydropyridin-2-one obtained in Referential Example 5 and 18.36 of 3-pyridineboronic acid, then 3.47 g of di-μ-hydroxo-bis[(N,N,N′,N′-tetramethylethylenediamine) copper (II)]chloride were added and the mixture was stirred in an oxygen atmosphere for 4 days and nights. The reaction solution was purified by an NH silica gel short column (eluted by ethyl acetate), the solvent was evaporated in vacuo and the resulting crude crystals were washed with diethyl ether to give 24.26 g (yield: 99%) of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.26 (m, 1H), 7.47-7.51 (m, 1H), 7.52-7.56 (m, 1H), 7.77 (dt, 1H), 7.87-7.91 (m, 1H), 8.19 (d, 1H), 8.53 (d, 1H), 8.59-8.62 (m, 1H), 8.71-8.75 (m, 2H).

Referential Example 7 1-(2-Pyridyl)-1,2-dihydropyridin-2-one

25 ml of a dimethylformamide solution containing 4.00 g of 2(1H)-pyridone and 8.00 g of 2-bromopyridine was incorporated with 3.80 g of potassium carbonate and 0.51 g of cupurous iodide, followed by stirring at 120° C. for 2 hours. After the mixture was returned to room temperature, water was added thereto. The mixture was extracted with ethyl acetate, and the ethyl acetate layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=1:1), to give 1.58 g of the title compound as a pale yellow wax.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.31 (dt, 1H), 6.67 (d, 1H), 7.33 (ddd, 1H), 7.40 (ddd, 1H), 7.82-7.90 (m, 2H), 7.96 (dd, 1H), 8.57 (dd, 1H).

Referential Example 8 1-(2-Pyridyl)-5-bromo-1,2-dihydropyridin-2-one

Under ice-cooling, 15 ml of a dimethylformamide solution containing 1.50 g of 1-(2-pyridyl)-1,2-dihydropyridin-2-one was incorporated with 1.60 g of N-bromosuccinic acid imide. The mixture was stirred at room temperature for 2 hours, and then diluted with water and extracted with ethyl acetate. The organic layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=1:3), to give 1.13 g of the title compound as a pale brown powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.57 (d, 1H), 7.34 (ddd, 1H), 7.42 (dd, 1H), 7.85 (dt, 1H), 7.97 (dd, 1H), 8.10 (d, 1H), 8.57 (dd, 1H).

Referential Example 9 1-(2-Pyridyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

2.5 ml of a dimethylformamide solution containing 0.10 g of 1-(2-Pyridyl)-5-bromo-1,2-dihydropyridin-2-one and 0.30 g of 2-tributyl stannyl pyridine was incorporated with 0.05 g of dichlorobistriphenylphosphine palladium, followed by stirring at 130° C. for 2 hours. The mixture was returned to room temperature, followed by diluting with water and extracting with ethyl acetate. The organic layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate), to give 0.076 g of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.77 (d, 1H), 7.22 (dd, 1H), 7.36 (dd, 1H), 7.61 (d, 1H), 7.76 (dt, 1H), 7.87 (dt, 1H), 7.97 (d, 1H), 8.12 (dd, 1H), 8.60-8.65 (m, 2H), 8.67 (d, 1H).

Referential Example 10 1-(2-Pyridyl)-5-(2-pyridyl)-3-bromo-1,2-dihydropyridin-2-one

2 ml of a dimethylformamide solution containing 0.07 g of 1-(2-pyridyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one was incorporated with 0.07 g of N-bromosuccinic acid imide, under stirring and ice-cooling. After stirring the mixture at room temperature for 2 hours, it was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=3:1), to give 0.05 g of the title compound as a pale brown powder.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.33 (ddd, 1H), 7.58 (ddd, 1H), 7.83-7.88 (m, 2H), 7.97 (dd, 1H), 8.07 (dt, 1H), 8.59-8.62 (m, 1H) 8.65-8.80 (m, 1H), 8.72 (d, 1H), 8.81 (d, 1H).

Referential Example 11 3,5-Dibromo-2-methoxypyridine

80 ml of a 28% sodium methoxide solution was incorporated with 30.0 g of 2,3,5-tribromopyridine under ice-cooling, followed by stirring at 50° C. for 2 hours. The reaction solution was diluted with water and extracted with diethyl ether. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=1:20), to give 18.5 g of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.99 (s, 3H), 7.93 (d, 1H), 8.14 (d, 1H).

Referential Example 12 3-(2-Pyridyl)-5-bromo-2-methoxypyridine

100 ml of a dimethylformamide solution containing 6.3 g of 3,5-dibromo-2-methoxypyridine and 8.1 g of 2-tributyl stannyl pyridine was incorporated with 11.0 g of tetrakistriphenylphosphine palladium, followed by stirring at 120° C. for 2 hours in nitrogen atmosphere. After the mixture was returned to room temperature, the solvent was evaporated, and the residue was extracted with ethyl acetate. The organic layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane=1:3), to give 2.8 g of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.02 (s, 3H), 7.31 (dd, 1H), 7.80 (dt, 1H), 8.02 (ddd, 1H), 8.25 (d, 1H), 8.40 (d, 1H), 8.71-8.74 (m, 1H).

Referential Example 13 3-(2-Pyridyl)-5-phenyl-2-(1H)-pyridone

A mixture of 11.0 g of 3-(2-pyridyl)-5-bromo-2-methoxypyridine, 0.9 g of phenylboronic acid, 0.3 g of dichlorobistriphenylphosphine palladium and 2 ml of triethylamine was stirred at 120° C. for 1.5 hours in 30 ml of xylene in nitrogen atmosphere. The mixture was returned to room temperature, diluted with ethyl acetate, washed with water and brine, and dried over magnesium sulfate. The solvent was evaporated, and the residue was incorporated with 47% hydrobromic acid and heated at 70° C. for 1 hour. The reaction solution was ice-cooled, diluted with water, and neutralized with potassium carbonate. The resulting precipitates were collected by filtration, washed with water and ether, and then air-dried, to give 0.5 g of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.30-7.37 (m, 2H), 7.43 (dd, 2H), 7.62 (d, 2H), 7.82-7.90 (m, 1H), 7.87 (d, 1H), 8.64-8.69 (m, 2H), 8.57 (d, 1H), 12.30 (brs, 1H).

Referential Example 14 1-Phenyl-3-nitro-5-(2-pyridyl)-1,2-dihydropyridin-2-one

14a 3-Nitro-1-phenyl-1,2-dihydropyridin-2-one

5 g of 2-hydroxy-3-nitropyridine, 7.14 g of phenylboronic acid, 2.6 g of copper (II) acetate, 9.9 ml of triethylamine and 5.8 ml of pyridine were added to 100 ml of tetrahydrofuran, followed by stirring overnight. The reaction mixture was poured into aqueous ammonia, and extracted with ethyl acetate. The organic layer was washed with water, dried, and concentrated. The residue was suspended into ether, and collected by filtration, to give 4.71 g of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.39 (dd, 1H), 7.36-7.40 (m, 2H), 7.49-7.54 (m, 3H), 7.73 (dd, 1H), 8.38 (dd, 1H).

14b 5-Bromo-3-nitro-1-phenyl-1,2-dihydropyridin-2-one

10 ml of a dimethylformamide solution containing 1 g of 3-nitro-1-phenyl-1,2-dihydropyridin-2-one was incorporated with 988 mg of N-bromosuccinimide, followed by stirring at room temperature overnight. Further, it was stirred at 50° C. for 3 hours. The reaction mixture was poured into ice-water, and the resulting precipitates were collected by filtration, to give 1.27 g of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.36-7.39 (m, 2H), 7.50-7.57 (m, 3H) 7.88 (d, 1H), 8.42 (d, 1H).

14c 3-Nitro-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

1.27 g of 5-bromo-3-nitro-1-phenyl-1,2-dihydropyridin-2-one, 2.38 g of 2-tri-n-butyl stannyl pyridine and 248 mg of tetrakistriphenylphosphine palladium were added to 20 ml of xylene, followed by stirring at 120° C. overnight in nitrogen atmosphere. The reaction mixture was purified by silica gel chromatography (ethyl acetate/hexane system), to give 638 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.28 (ddd, 1H), 7.45-7.63 (m, 6H), 7.80 (dt, 1H), 8.61 (ddd, 1H), 8.63 (d, 1H), 9.03 (d, 1H).

Referential Example 15 3-Amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

100 mg of 10% palladium-carbon was added to 20 ml of an ethanol solution containing 546 mg of 3-nitro-1-phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-one, followed by stirring overnight in hydrogen atmosphere. The reaction mixture was filtered through silica gel and concentrated, to give 411 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.36-4.42 (m, 1H), 7.18 (dd, 1H), 7.28 (d, 1H), 7.44-7.54 (m, 6H), 7.61 (d, 1H), 7.70 (dt, 1H), 8.57-8.60 (m, 1H).

Referential Example 16 3-(2-Cyanophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one

6 g of methyl 5-bromo-6-hydroxynicotinate synthesized by a known method from 6-hydroxynicotinic acid, and 6.3 g of phenylboronic acid were dissolved in 200 ml of tetrahydrofuran. To the mixture were added 939 mg of copper acetate and 1 ml of pyridine, followed by stirring at room temperature for 3 nights. Aqueous ammonia was added to the reaction solution, and the solution was extracted with chloroform. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue obtained as a solid was washed with diethyl ether, to give 7.35 g of 3-bromo-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one as whit crystals. 5 g of the product was dissolved in 100 ml of dimethylformamide, followed by adding 4.6 g of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 7.9 g of cesium carbonate and 375 mg of tetrakistriphenylphosphine palladium, and stirring at 140° C. for 1 hour in nitrogen atmosphere. After cooling to room temperature, the reaction mixture was poured into water, and extracted with ethyl acetate. Then, the extract was successively washed with water and brine, and dried over anhydrous magnesium sulfate. Then, the solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 3.23 g of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.89 (s, 3H), 7.42-7.55 (m, 6H), 7.61-7.66 (m, 2H), 7.75 (dd, 1H), 8.14 (d, 1H), 8.35 (d, 1H).

Referential Example 17 3-(2-Chlorophenyl)-5-hydroxymethyl-1-phenyl-1,2-dihydropyridin-2-one

36 mg of 3-(2-chlorophenyl)-5-methoxycarbonyl-1-phenyl-1,2-dihydropyridin-2-one synthesized by the method of Referential Example 3 from 3-bromo-5-methoxycarbonyl-1-phenyl-1,2-dihydropyridin-2-one and 2-chloroboronic acid, was dissolved in 20 ml of toluene. After cooling to −78° C., 0.1 ml diisopropyl aluminumhydride (1.5M tetrahydrofuran solution) was added dropwise thereinto. While heating from −78° C. to room temperature, the mixture was stirred overnight. Then, 1N hydrochloric acid was added thereto, followed by stirring. The mixture was neutralized with an aqueous solution of sodium hydrogen carbonate, and then extracted with ethyl acetate. Then, the extract was successively washed with water and brine, and dried over anhydrous magnesium sulfate. Then, the solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.48 (s, 2H), 7.25-7.29 (m, 3H), 7.37-7.51 (m, 8H).

ESI-Mass; 312 [M⁺+H]

Referential Example 18 3-Methoxycarbonyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

4.5 g of methyl 5-bromo-2-hydroxynicotinate synthesized by a known method from 2-hydroxynicotinic acid, and 4.7 g of phenylboronic acid were dissolved in 200 ml of tetrahydrofuran. To the mixture were added 705 mg of copper acetate and 1 ml of pyridine, followed by stirring at room temperature for 3 nights in a flow of air. Aqueous ammonia was added to the reaction solution, and the solution was extracted with chloroform. The organic layer was washed with brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue obtained as a solid was washed with diethyl ether, to obtain 3.59 g of 5-bromo-3-methoxycarbonyl-1-phenyl-1,2-dihydropyridin-2-one as white crystals. 3.2 g of the product was dissolved in 100 ml of dimethylformamide, to which 7.7 g of tri-N-butyl-(2-pyridyl)tin [CAS No. 59020-10-9] and 240 mg of tetrakistriphenylphosphine palladium were added, followed by stirring at 110° C. for 3 hours in nitrogen atmosphere. After cooling to room temperature, the reaction solution was poured into water, extracted with ethyl acetate. Then, the extract was successively washed with water and brine, dried over anhydrous magnesium sulfate, and then filtered through NH silica gel and silica gel. Then, the filtrate was evaporated, and the resulting precipitates were washed with ether and hexane, and dried, to give 1.59 g of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.95 (s, 3H), 7.22 (ddd, 1H), 7.42-7.54 (m, 5H), 7.62 (dt, 1H), 7.76 (td, 1H), 8.52 (d, 1H), 8.58 (ddd, 1H), 8.85 (d, 1H).

Referential Example 19 3-(2-Cyanophenyl)-5-nitro-1-phenyl-1,2-dihydropyridin-2-one

19a 5-Nitro-1-phenyl-1,2-dihydropyridin-2-one

5.93 g of the title compound was obtained in accordance with the method used for Referential Example (14-1), from 5 g of 2-hydroxy-5-nitropyridine.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.67 (d, 1H), 7.39-7.43 (m, 2H), 7.53-7.59 (m, 3H), 8.18 (dd, 1H), 8.68 (dd, 1H).

19b 3-Bromo-5-nitro-1-phenyl-1,2-dihydropyridin-2-one

4.72 g of the title compound was obtained in accordance with the method used for Referential Example (14-2), from 5.93 g of 5-nitro-1-phenyl-1,2-dihydropyridin-2-one.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.38-7.42 (m, 2H), 7.54-7.58 (m, 3H), 8.59-8.61 (m, 1H), 8.66-8.68 (m, 1H).

19c 5-Nitro-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

758 mg of the title compound was obtained in accordance with the method used for Referential Example 3, from 3 g of 3-bromo-5-nitro-1-phenyl-1,2-dihydropyridin-2-one.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.47-7.63 (m, 7H), 7.68 (dt, 1H), 7.80 (ddd, 1H), 8.38 (d, 1H), 8.78 (d, 1H).

Referential Example 20 5-Amino-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

414 mg of the title compound was obtained in accordance with the method used for Referential Example 15, from 708 mg of 5-nitro-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.99 (d, 1H), 7.39-7.49 (m, 7H), 7.60 (dt, 1H), 7.73 (d, 1H), 7.75 (d, 1H).

Example 1 3-(2-Cyanophenyl)-5-(2-nitrophenyl)-1-phenyl-1,2-dihydropyridin-2-one

5-Bromo-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one (100 mg), 60 mg of 2-nitrophenylboronic acid and 130 mg of cesium carbonate were suspended in 10 ml of dimethylformamide, then 20 mg of tetrakistriphenylphosphine palladium were added and the mixture was stirred at 120° C. in a nitrogen atmosphere for 4 hours. After allowing to cool, the reaction solution was poured into water, the mixture was extracted with ethyl acetate, the extract was dried over anhydrous magnesium sulfate, the solvent was evaporated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 35 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.40-7.80 (m, 14H), 7.97 (dd, 1H).

Example 2 5-(2-Aminophenyl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

3-(2-Cyanophenyl)-5-(2-nitrophenyl)-1-phenyl-1,2-dihydropyridin-2-one (32 mg) was dissolved in 15 ml of ethyl acetate, 5 mg of 10% palladium-carbon (water-containing substance) were added and the mixture was stirred at room temperature in a hydrogen atmosphere for 15 minutes. The catalyst was filtered off and the solvent was evaporated in vacuo to give 20 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.95 (bs, 2H), 6.76 (dd, 1H), 6.80 (dt, 1H), 7.14 (dd, 1H), 7.17 (dt, 1H), 7.41-7.55 (m, 6H), 7.59 (d, 1H), 7.62 (dt, 1H), 7.74-7.82 (m, 2H), 7.88 (d, 1H).

Example 3 3-(2-Cyanophenyl)-5-(2-methylsulfonylaminophenyl)-1-phenyl-1,2-dihydropyridin-2-one

5-(2-Aminophenyl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one (16 mg) was dissolved in 10 ml of dimethylformamide, then 0.05 ml of triethylamine and 3 drops of methanesulfonyl chloride were added and the mixture was stirred at room temperature for one hour. Ethyl acetate was added to the reaction solution, the mixture was washed with water and a saturated saline solution, the solvent was evaporated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 5 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.19 (s, 3H), 6.88-6.95 (m, 1H), 7.08-7.15 (m, 1H), 7.38-7.55 (m, 8H), 7.61 (dt, 1H), 7.69-7.76 (m, 3H), 7.91 (d, 1H), 7.92-7.97 (m, 1H).

Example 4 3-(2-Chloro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

3-Iodo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one (200 mg) synthesized by the same method as mentioned in Referential Example 6, 130 mg of 2-chloro-3-pyridylboronic acid and 250 mg of cesium carbonate were suspended in 10 ml of dimethylformamide, 40 mg of tetrakistriphenylphosphine palladium were added and the mixture was stirred at 100° C. in a nitrogen atmosphere for 3 hours. After allowing to cool, the reaction solution was poured into water, the mixture was extracted with ethyl acetate, the extract was dried over anhydrous magnesium sulfate, the solvent was evaporated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 143 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20-7.24 (m, 1H), 7.31 (dd, 1H), 7.44-7.59 (m, 6H), 7.75 (dt, 1H), 7.91 (dd, 1H), 8.25 (d, 1H), 8.33 (d, 1H), 8.41 (dd, 1H), 8.59-9.62 (m, 1H).

Example 5 3-(2-Cyanophenyl)-5-(2-pyridyl)-2-methoxypyridine

Tetrakistriphenylphosphine palladium (0.15 g) was added to a mixed solution of 0.50 g of 5-(2-pyridyl)-3-bromo-2-methoxypyridine, 0.42 g of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 0.82 g of cesium carbonate and 20 ml of dimethylformamide and the mixture was stirred at 140° C. in a nitrogen atmosphere for 5 hours. After cooling to room temperature, ethyl acetate was added thereto, the mixture was washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by a silica gel column chromatography (ethyl acetate:hexane=1:3) to give 0.36 of the title compound as pale yellow powder.

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 4.03 (3H, s), 7.24-7.28 (1H, m), 7.46-7.51 (1H, ddd), 7.57 (1H, dd), 7.65-7.69 (1H, ddd), 7.72-7.82 (3H, m), 8.31 (1H, d), 8.66-8.69 (1H, m), 8.83 (1H, d).

Example 6 3-(2-Cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone

Chlorotrimethylsilane (0.1 ml) was added to a suspension of 0.20 g of 3-(2-cyanophenyl)-5-(2-pyridyl)-2-methoxypyridine and 0.12 g of sodium iodide in 10 ml of acetonitrile and the mixture was stirred at room temperature for 3 hours. A saturated sodium bicarbonate solution was added to the mixture followed by extracting with ethyl acetate. The ethyl acetate layer was washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by a silica gel column chromatography (ethyl acetate:hexane=1:1) to give 0.11 g of the title compound in pale yellow powder.

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.26-7.30 (1H, ddd), 7.55-7.60 (1H, ddd), 7.66 (1H, dd), 7.74-7.79 (1H, ddd), 7.80-7.86 (1H, ddd), 7.89-7.94 (2H, m), 8.28 (1H, d), 8.37 (1H, d), 8.56-8.59 (1H, m).

Example 7 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

A suspension of 0.11 g of 3-(2-cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone, 0.12 g of phenyl boronic acid 0.1 g of copper acetate and 0.3 ml of triethylamine in 10 ml of methylene chloride was stirred at room temperature for overnight. To this were added 5 ml of concentrated aqueous ammonia, 10 ml of water and 40 ml of ethyl acetate and the organic layer was separated, washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by a silica gel column chromatography (ethyl acetate:hexane=1:2) to give 0.06 g of the title product as pale yellow powder.

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.29-7.33 (1H, m), 7.48-7.63 (6H, m), 7.71-7.75 (1H, dd), 7.76-7.88 (2H, m), 7.92-7.95 (1H, m), 8.01 (1H, d), 8.48 (1H, d), 8.54 (1H, d), 8.58-8.61 (1H, m).

Example 8 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-nitrophenyl)-1,2-dihydropyridin-2-one

The title compound was obtained in the same manner as in Example 7.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.28 (m, 1H), 7.49 (dt, 1H), 7.63-7.81 (m, 6H), 7.95-7.98 (m, 1H), 8.31-8.37 (m, 3H), 8.45 (t, 1H), 8.60-8.63 (m, 1H).

Example 9 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one

Iron powder (180 mg) and 342 mg of ammonium chloride were added to a solution of 317 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-nitrophenyl)-1,2-dihydropyridin-2-one in a mixture of 10 ml of 2-propanol and 5 ml of water followed by refluxing for 4 hours. The reaction mixture was concentrated, partitioned in ethyl acetate-water, the organic layer was washed with water, dried and concentrated and the residue was purified by a silica gel column chromatography (ethyl acetate/hexane system) to give 235 mg of the title compound as a pale yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.84 (s, 2H), 6.75 (dd, 1H), 6.82-6.87 (m, 2H), 7.20 (dd, 1H), 7.26-7.30 (m, 1H), 7.45 (td, 1H), 7.59-7.65 (m, 2H), 7.72-7.80 (m, 3H), 8.29 (s, 2H), 8.56-8.61 (m, 1H)

Example 10 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one

Triethylamine (0.2 ml) was added to a solution of 31 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one in 2 ml of tetrahydrofuran, 0.1 ml of methanesulfonic acid chloride was dropped thereinto with ice cooling and the mixture was stirred for 10 minutes. To this were added 2 ml of 2N sodium hydroxide, the mixture was stirred at room temperature for 5 minutes and partitioned to ethyl acetate-water, the organic layer was washed with water, dried and concentrated and the residue was purified by a silica gel column chromatography (ethyl acetate-hexane system) to give 38 mg of the title compound as a pale yellow amorphous substance.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.31 (m, 3H), 7.36 (t, 1H), 7.43 (t, 1H), 7.46 (dd, 1H), 7.61 (dt, 1H), 7.65 (td, 1H), 7.73-7.78 (m, 3H), 8.27 (d, 1H), 8.31 (d, 1H), 8.59-8.61 (m, 1H).

Example 11 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminophenyl)-1,2-dihydropyridin-2-one

Paraformaldehyde (41 mg) and 119 mg of triacetoxy sodium borohydride were added to a solution of 50 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one in 3 ml of acetic acid followed by stirring at room temperature for one night. To this was added an aqueous solution of sodium bicarbonate, the mixture was extracted with ethyl acetate, the organic layer was washed with water, dried and concentrated and the residue was purified by a silica gel column chromatography (ethyl acetate/hexane system) to give 11 mg of the title compound as a pale yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.00 (s, 3H), 7.11-7.14 (m, 1H), 7.21 (ddd, 1H), 7.35 (t, 1H), 7.44-7.49 (m, 2H), 7.59 (d, 1H), 7.66 (td, 1H), 7.70-7.77 (m, 4H), 8.25 (d, 1H), 8.51 (s, 1H), 8.58-8.61 (m, 1H).

Example 12 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-dimethylaminophenyl)-1,2-dihydropyridin-2-one

Paraformaldehyde (41 mg) and 119 mg of triacetoxy sodium borohydride were added to a solution of 50 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one in 3 ml of acetic acid followed by stirring at room temperature for 6 hours. To this were further added 41 mg of paraformaldehyde and 119 mg of triacetoxy sodium borohydride, the mixture was stirred for one night, an aqueous solution of sodium bicarbonate was added thereto, the mixture was extracted with ethyl acetate, the organic layer was washed with water, dried and concentrated and the residue was purified by a silica gel column chromatography (ethyl acetate/hexane system) to give 38 mg of the title compound as a pale yellow amorphous substance.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.99 (s, 6H), 6.77-6.80 (m, 3H), 7.18-7.21 (m, 1H), 7.32-7.37 (m, 1H), 7.44 (t, 1H), 7.59-7.64 (m, 1H), 7.71-7.83 (m, 3H), 8.32 (s, 2H), 8.58-8.60 (m, 1H).

Example 13 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-[3-(5-methoxymethyl-2-oxazolidinon-3-yl)-phenyl]-1,2-dihydropyridin-2-one

Glycidyl methyl ether (0.01 ml) and 22 mg of magnesium periodate were added to a solution of 38 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one in 6 ml of acetonitrile followed by stirring at room temperature. After 2 hours, 0.01 ml of glycidyl methyl ether and 22 mg of magnesium periodate were further added thereto and the mixture was stirred at room temperature for 1 hours and then stirred at 50° C. for 1 hour more. The reaction mixture was partitioned to ethyl acetate-water, the organic layer was washed with water, dried and concentrated, the residue was dissolved in 6 ml of tetrahydrofuran, 32 mg of carbonyldiimidazole were added thereto and the mixture was heated to reflux for 2 hours. This was partitioned to ethyl acetate-water, the organic layer was washed with water, dried and concentrated and the residue was purified by a preparative thin layer chromatography (ethyl acetate/hexane system) to give 21 mg of the title compound as a pale yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.43 (s, 3H), 3.64 (dd, 2H), 3.97 (dd, 1H), 4.09 (t, 1H), 4.77 (ddd, 1H), 7.22 (ddd, 1H), 7.29 (ddd, 1H), 7.46 (td, 1H), 7.53 (t, 1H), 7.59-7.79 (m, 5H), 8.30 (d, 1H), 8.31 (d, 1H), 8.58-8.61 (m, 1H).

Example 14 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methoxycarbonylphenyl)-1,2-dihydropyridin-2-one

The title compound was obtained in the same manner as in Example 7.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.94 (s, 3H), 7.23 (ddd, 1H), 7.47 (td, 1H), 7.59-7.68 (m, 4H), 7.73-7.80 (m, 3H), 7.88-7.91 (m, 2H), 8.31 (d, 1H), 8.32 (d, 1H), 8.59-8.61 (m, 1H).

Example 15 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminocarbonylphenyl)-1,2-dihydropyridin-2-one

3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methoxycarbonylphenyl)-1,2-dihydropyridin-2-one (10 mg) was added to 6 ml of a 40% methanolic solution of methylamine followed by stirring at room temperature for one night. The reaction solution was concentrated in vacuo to give 10 mg of the title compound as a pale yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.00 (d, 3H), 6.51 (brs, 1H), 7.23 (ddd, 1H), 7.47 (td, 1H), 7.58-7.68 (m, 4H), 7.73-7.80 (m, 3H), 7.88-7.91 (m, 2H), 8.31 (d, 1H), 8.32 (d, 1H), 8.59-8.61 (m, 1H).

Example 16 3-(2-Cyano-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one (Route 1)

3-(2-Chloro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one (281 mg) was dissolved in 20 ml of dimethylformamide, 170 mg of copper cyanide were added and the mixture was stirred at 130° C. for 10 hours. The reaction solution was cooled to room temperature, aqueous ammonia and ethyl acetate were added, the organic layer was partitioned, washed with water and dried over anhydrous sodium sulfate, the drying agent was filtered off, the filtrate was concentrated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 120 mg of the title compound as a colorless amorphous substance.

(Route 2)

3-Bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one (2.9 g) synthesized by the same method as mentioned in Referential Example 6 was dissolved in 200 ml of xylene, 5 ml of bis(tributyl tin) and 400 mg of tetrakistriphenylphosphine palladium were added and the mixture was stirred at 140° C. for 2 hours. 3-Bromo-2-cyanopyridine (3.2 g) and 100 mg of tetrakistriphenylphosphine palladium were added thereto and the mixture was stirred at 140° C. for 2 hours. Tetrakistriphenylphosphine palladium (1.0 g) and 800 mg of copper iodide were divided into four and added every 1 hour, then 2 g of 3-bromo-2-cyanopyridine were added thereto and the mixture was stirred at 140° C. for one night. The reaction solution was cooled to room temperature, water and ethyl acetate were added thereto, the organic layer was partitioned, washed with water and dried over anhydrous sodium sulfate, the drying agent was filtered off, the filtrate was concentrated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 1.8 g of the title compound as a colorless amorphous substance.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.47-5.57 (m, 6H), 7.63 (d, 1H), 7.68 (td, 1H), 8.22 (dd, 1H), 8.37 (dd, 1H), 8.43 (d, 1H), 8.59-8.61 (m, 1H), 8.69 (dd, 1H).

ESI-Mass; 351 [M⁺+H]

Example 17 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one

The title compound was obtained in the same manner as in Example 4.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.84 (s, 3H), 6.98-7.03 (m, 2H), 7.19 (ddd, 1H), 7.28-7.33 (m, 2H), 7.40-7.46 (m, 2H), 7.46-7.51 (m, 2H), 7.53-7.57 (m, 1H), 7.72 (ddd, 1H), 8.12 (d, 1H), 8.29 (d, 1H), 8.57-8.61 (m, 1H).

Example 18 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-hydroxyphenyl)-1,2-dihydropyridin-2-one

3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one (440 mg) was dissolved in 5 ml of 48% hydrobromic acid and heated to reflux for 1 hours. After the reaction solution was allowed to cool at room temperature, it was diluted with a saturated aqueous solution of sodium bicarbonate and extracted with ethyl acetate. The organic layer was washed with water and dried over anhydrous magnesium sulfate. The drying agent was filtered off and the filtrate was concentrated in vacuo and purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 292 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.67-6.73 (m, 2H), 7.12-7.18 (m, 2H), 7.19-7.24 (m, 1H), 7.30-7.38 (m, 2H), 7.47-7.53 (m, 2H), 7.56 (d, 1H), 7.70 (s, 1H), 7.73 (ddd, 1H), 8.18 (d, 1H), 8.26 (d, 1H), 8.57-8.62 (m, 1H).

Example 19 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one

3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-hydroxyphenyl)-1,2-dihydropyridin-2-one (82 mg) and 57 mg of N,N-dimethylaminoethyl chloride were dissolved in 2 ml of dimethylformamide, 55 mg of potassium carbonate were added thereto at 60° C. and the mixture was stirred for one night. The reaction solution was diluted with water and extracted with ethyl acetate. The organic layer was washed with a saturated saline solution and dried over anhydrous magnesium sulfate. The drying agent was filtered off and the filtrate was concentrated in vacuo and purified by an NH silica gel column chromatography (hexane-ethyl acetate system) to give 27 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.55 (s, 6H), 2.76 (t, 2H), 4.11 (t, 2H), 6.99-7.05 (m, 2H), 7.19 (ddd, 1H), 7.26-7.34 (m, 2H), 7.39-7.45 (m, 2H), 7.45-7.51 (m, 2H), 7.55 (d, 1H), 7.72 (ddd, 1H), 8.12 (d, 1H), 8.28 (d, 1H), 8.57-8.61 (m, 1H).

Example 20 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-formylphenyl)-1,2-dihydropyridin-2-one

The title compound was obtained in the same manner as in Example 7.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.84 (ddd, 1H), 7.63 (d, 1H), 7.66 (ddd, 1H), 7.72 (dd, 1H), 7.75-7.82 (m, 3H), 7.84-7.88 (m, 1H), 8.00 (ddd, 1H), 8.05-8.08 (m, 1H), 8.32 (d, 1H), 8.35 (d, 1H), 8.59-8.62 (m, 1H), 10.08 (s, 1H).

Example 21 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxymethylphenyl)-1,2-dihydropyridin-2-one

3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-formylphenyl)-1,2-dihydropyridin-2-one (585 mg) was dissolved in 20 ml of methanol, 260 mg of sodium borohydride were added with ice cooling and the mixture was stirred at room temperature for one night. The reaction solution was diluted with ethyl acetate, washed with a saturated saline solution and dried over anhydrous magnesium sulfate. The drying agent was filtered off and the filtrate was concentrated in vacuo and purified by an NH silica gel column chromatography (ethyl acetate). The resulting crude crystals were recrystallized from ethyl acetate-diethyl ether to give 320 mg of the title compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 4.60 (d, 2H), 5.37 (t, 1H), 7.29-7.33 (m, 1H), 7.42-7.47 (m, 2H), 7.48-7.55 (m, 2H), 7.59 (ddd, 1H), 7.73 (dd, 1H), 7.78 (dd, 1H), 7.83 (ddd, 1H), 7.94 (dd, 1H), 8.01 (d, 1H), 8.48 (d, 1H), 8.52 (d, 1H), 8.57-8.61 (m, 1H).

Example 22 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-cyanomethylphenyl)-1,2-dihydropyridin-2-one

3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one (53 mg) was dissolved in 2 ml of tetrahydrofuran, then 60 ml of triethylamine and 20 ml of methanesulfonyl chloride were added thereto with ice cooling and the mixture was stirred at room temperature for 3 hours. The reaction solution was diluted with an aqueous solution of sodium bicarbonate and extracted with ethyl acetate and the extract was dried over anhydrous magnesium sulfate. The drying agent was filtered off, the filtrate was concentrated in vacuo, the resulting residue was dissolved in 1 ml of dimethyl sulfoxide, 3 mg of sodium cyanide were added and the mixture was stirred at room temperature for 1 hour. The reaction solution was diluted with ethyl acetate, washed with an aqueous solution of sodium bicarbonate and a saturated saline solution and dried over anhydrous magnesium sulfate. The drying agent was filtered off, the filtrate was concentrated in vacuo and the resulting crude crystals were recrystallized from ethyl acetate-diethyl ether-hexane to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.85 (s, 2H), 7.21-7.26 (m, 1H), 7.41-7.81 (m, 10H), 8.29-8.32 (m, 2H), 8.59-8.62 (m, 1H).

The following compounds were prepared by the same manner as in the above Example 22.

Example 23 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-acetylaminomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.04 (s, 3H) 4.47-4.52 (m, 2H), 7.22 (ddd, 1H), 7.37-7.53 (m, 5H), 7.61 (d, 1H), 7.65 (ddd, 1H), 7.72-7.81 (m, 3H), 8.28 (d, 1H), 8.31 (d, 1H), 8.59-8.62 (m, 1H).

Example 24 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.91 (s, 3H), 4.36 (d, 2H), 5.00-5.06 (m, 1H), 7.22 (ddd, 1H), 7.43-7.49 (m, 3H), 7.50-7.55 (m, 2H), 7.61 (ddd, 1H), 7.64 (ddd, 1H), 7.73-7.79 (m, 3H), 8.28-8.31 (m, 2H), 8.60 (ddd, 1H).

Example 25 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-acetoxymethylphenyl)-1,2-dihydropyridin-2-one

To 56 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one were added 1 ml of acetic anhydride and 1 ml of pyridine and the mixture was stirred at room temperature for one night. The reaction solution was concentrated in vacuo and purified by an NH silica gel chromatography (hexane-ethyl acetate system) to give 30 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.13 (s, 3H), 5.18 (s, 2H), 7.23 (ddd, 1H), 7.44-7.56 (m, 5H), 7.60-7.67 (m, 2H), 7.73-7.81 (m, 3H), 8.30-8.33 (m, 2H), 8.59-8.62 (m, 1H).

Example 26 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one

The title compound was obtained in the same manner as in Example 7.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.53 (s, 1H), 7.21-7.24 (m, 1H), 7.36-8.79 (m, 10H), 8.28-8.32 (m, 2H), 8.59-8.61 (m, 1H).

Example 27 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-methylsulfonylphenyl)-1,2-dihydropyridin-2-one

A 70% m-chloroperbenzoic acid (500 mg) was added little by little during 2 hours to a solution of 50 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one in 4 ml of methylene chloride followed by stirring with ice cooling. A saturated aqueous solution of sodium bicarbonate was added thereto, the mixture was partitioned to ethyl acetate-water, the organic layer was washed with water, dried and concentrated and the residue was purified by a silica gel column chromatography (ethyl acetate/hexane system) to give 5 mg of the title compound as a yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.11 (s, 3H), 7.24-7.28 (m, 1H), 7.50 (dt, 1H), 7.61-7.82 (m, 7H), 8.20 (d, 2H), 8.30-8.33 (m, 2H), 8.60-8.63 (m, 1H).

Example 28 3-(2-Cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one

The title compound was prepared according to Example 1.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.29 (d, 1H), 7.42-7.57 (m, 6H), 7.65 (dt, 1H), 7.71 (d, 1H), 7.77-7.82 (m, 3H), 7.85 (d, 1H), 10.10 (s, 1H).

Example 29 3-(2-Cyanophenyl)-5-(2-diethylaminomethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one

A solution of 20 mg of 3-(2-cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one, 0.1 ml of a 2M solution of diethylamine in tetrahydrofuran and 0.1 ml acetic acid in 2 ml of tetrahydrofuran was stirred at room temperature for 15 minutes, 20 mg of sodium triacetoxyborohydride were added and the mixture was stirred for 3 hours more. A 2N aqueous solution of sodium hydroxide was added thereto, the mixture was extracted with ethyl acetate and the organic layer was washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by an NH silica gel column chromatography to give 15 mg of the title compound as white powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.38 (t, 6H), 2.99-3.20 (m, 4H), 4.57 (d, 2H), 7.07 (d, 1H), 7.40-7.58 (m, 8H), 7.60-7.67 (m, 2H), 7.77 (d, 1H), 7.87 (d, 1H).

Example 30 3-(2-Cyanophenyl)-5-(2-hydroxymethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one

Sodium triacetoxyborohydride (10 mg) was added to a solution of 10 mg of 3-(2-cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one in 2 ml of tetrahydrofuran and the mixture was stirred for 1 hour. A 10% aqueous solution of sodium carbonate was added thereto, the mixture was extracted with ethyl acetate and the organic layer was washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by an NH silica gel column chromatography to give 8 mg of the title compound as white powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.86 (s, 2H), 7.11 (d, 1H), 7.33 (d, 1H), 7.42-7.54 (m, 6H), 7.60-7.65 (m, 1H), 7.75 (d, 1H), 7.76-7.79 (m, 1H), 7.81-7.84 (m, 1H), 7.91 (d, 1H).

MS (ESI): 385 (MH⁺)

Example 31 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-one

3-(2-Cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone (46 mg), 36 mg of benzyl alcohol and 88 mg of triphenylphosphine were dissolved in 2 ml of tetrahydrofuran, 147 mg of a 40% solution of diethylazo dicarboxylate in toluene were added with ice cooling and the mixture was stirred at room temperature for 1 hour. The reaction solution was concentrated in vacuo and purified by a silica gel chromatography (hexane-ethyl acetate system) to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 5.33 (s, 2H), 7.18 (ddd, 1H), 7.31-7.40 (m, 3H), 7.42-7.48 (m, 3H), 7.53 (dd, 1H), 7.64 (ddd, 1H), 7.68-7.79 (m, 3H), 8.18 (d, 1H), 8.30 (d, 1H), 8.56-8.60 (m, 1H).

Example 32 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

3-Bromo-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one (5.39 g) was dissolved in 200 ml of dimethylformamide, then 6.42 g of cesium carbonate, 3.69 g of 2-(2′-cyanophenyl)-1,3,2-dioxaborian and 949 mg of tetrakistriphenylphosphinepalladium were added thereto and the mixture was stirred at 120° C. for 1 hour. The reaction solution was cooled to room temperature, water and ethyl acetate were added thereto, the organic layer was partitioned, washed with water and dried over anhydrous magnesium sulfate, the drying agent was filtered off, the filtrate was concentrated in vacuo and the residue was purified by a silica gel column chromatography (hexane-ethyl acetate system) to give 4.8 g of the title compound as a colorless amorphous substance.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.26 (m, 1H), 7.46-7.52 (m, 2H), 7.62 (dt, 1H), 7.66 (td, 1H), 7.74-7.81 (m, 3H), 7.97 (ddd, 1H), 8.32 (s, 2H), 8.61 (ddd, 1H), 8.72 (dd, 1H), 8.80-8.81 (m, 1H).

ESI-Mass; 351 [M⁺+H]

The following compounds were synthesized by the same method as mentioned in Example 1.

Example 33 3-(2-Pyridyl)-5-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.35-7.40 (1H, m), 7.49-7.64 (5H, m), 7.77-7.81 (2H, m), 7.86 (1H, dt), 7.96 (1H, d), 8.22 (1H, d), 8.51 (1H, d), 8.66-8.71 (2H, m).

Example 34 3-(2-Cyanophenyl)-5-(3-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.38 (dd, 1H), 7.45-7.58 (m, 6H), 7.65 (ddd, 1H), 7.72 (d, 1H), 7.77-7.86 (m, 3H), 7.94 (d, 1H), 8.60 (dd, 1H), 8.79 (d, 1H).

Example 35 3-(2-Cyanophenyl)-5-(4-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.44 (dd, 2H), 7.46-7.58 (m, 6H), 7.66 (ddd, 1H), 7.81 (dd, 2H), 7.84 (d, 1H), 8.01 (d, 1H), 8.66 (dd, 2H).

Example 36 3-(2-Cyanophenyl)-5-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26-7.59 (m, 7H), 7.62-7.72 (m, 3H), 7.76-7.80 (m, 2H), 7.82-7.84 (m, 1H), 7.86-7.88 (m, 2H).

ESI-Mass; 374 [M⁺+H]

Example 37 3,5-Diphenyl-1-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.36-7.40 (3H, m), 7.41-7.47 (4H, m), 7.52-7.56 (2H, m), 7.74-7.78 (2H, m), 7.84-7.90 (2H, m), 7.98-8.01 (1H, m), 8.11 (1H, d), 8.61-8.63 (1H, m).

Example 38 3-Phenyl-5-(2-cyanophenyl)-1-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.34-7.40 (2H, m), 7.40-7.50 (3H, m), 7.53 (2H, dd), 7.67 (1H, dt), 7.75-7.81 (2H, m), 7.83 (1H, d), 7.88 (1H, dt), 8.02 (1H, d), 8.15 (1H, d), 8.59-8.62 (1H, m).

Example 39 3-(2-Cyanophenyl)-5-phenyl-1-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.33-7.40 (2H, m), 7.41-7.50 (3H, m), 7.54-7.59 (2H, m), 7.65 (1H, dt), 7.75 (1H, dd), 7.80 (1H, dd), 7.88 (1H, dt), 7.96 (1H, d), 8.03 (1H, d), 8.23 (1H, d), 8.60-8.64 (1H, m).

Example 40 3-(2-Cyanophenyl)-5-(2-cyanophenyl)-1-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.36-7.40 (1H, m), 7.45-7.51 (2H, m), 7.61-7.66 (1H, m), 7.66-7.71 (2H, m), 7.75-7.80 (3H, m), 7.86-7.91 (2H, m), 8.05-8.09 (1H, m), 8.34 (1H, d), 8.59-8.62 (1H, m).

Example 41 3-(2-Cyanophenyl)-1,5-diphenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.32-7.37 (m, 1H), 7.41-7.56 (m, 10H), 7.63 (td, 1H), 7.69 (d, 1H), 7.77-7.82 (m, 2H), 7.98 (d, 1H).

ESI-Mass; 349 [M⁺+H]

Example 42 3-(2-Cyanophenyl)-5-(2-methoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.88 (s, 3H), 6.95-7.04 (m, 3H), 7.29-7.54 (m, 7H), 7.58-7.64 (m, 1H), 7.71 (d, 1H), 7.74-7.79 (m, 2H), 7.95 (d, 1H).

Example 43 3-(2-Cyanophenyl)-5-(3,4-dimethoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.91 (s, 3H), 3.94 (s, 3H), 6.92 (d, 1H), 7.00-7.02 (m, 1H), 7.04 (dd, 1H), 7.40-7.59 (m, 6H), 7.60-7.68 (m, 2H), 7.76-7.79 (m, 1H), 7.82-7.86 (m, 1H), 7.97 (d, 1H).

Example 44 3-(2-Cyanophenyl)-5-(thiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (dd, 1H), 7.35 (dd, 1H), 7.41 (dd, 1H), 7.43-7.56 (m, 6H), 7.63 (dt, 1H), 7.70 (d, 1H), 7.76-7.81 (m, 2H), 7.96 (d, 1H).

Example 45 3-(2-Cyanophenyl)-5-(2-fluorophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.16 (ddd, 1H), 7.23 (dt, 1H), 7.29-7.36 (m, 1H), 7.42-7.54 (m, 6H), 7.60-7.67 (m, 2H), 7.74-7.81 (m, 3H), 7.92 (dd, 1H).

Example 46 3-(2-Cyanophenyl)-5-(thiophen-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.07 (dd, 1H), 7.17 (dd, 1H), 7.25-7.28 (m, 1H), 7.43-7.56 (m, 6H), 7.64 (dt, 1H), 7.72 (d, 1H), 7.74-7.80 (m, 2H), 7.93 (d, 1H).

Example 47 3-(2-Cyanophenyl)-5-phenyl-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.32-7.39 (1H, m), 7.41-7.47 (2H, m), 7.52-7.65 (2H, m), 7.73-7.80 (4H, m), 7.94 (1H, d), 8.06-8.11 (1H, m), 8.20 (1H, d), 8.25 (1H, d), 8.68 (1H, dd), 8.83 (1H, d).

Example 48 3-(2-Cyanophenyl)-5-(3-furfuryl)-1-(phenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.55 (dd, 1H), 7.42-7.56 (m, 7H), 7.58 (d, 1H), 7.60-7.67 (m, 2H), 7.74-7.79 (m, 2H), 7.82 (d, 1H).

Example 49 3-(2-Cyanophenyl)-5-(2-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.12-7.24 (m, 2H), 7.42-7.55 (m, 6H), 7.58-7.65 (m, 3H), 7.66 (d, 1H), 7.74-7.77 (m, 2H).

Example 50 3-(2-Cyanophenyl)-5-(2,4-dimethoxypyrimidin-5-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.03 (s, 3H), 4.07 (s, 3H) 7.42-7.57 (m, 5H), 7.60-7.70 (m, 3H), 7.75-7.80 (m, 2H), 7.86 (d, 1H), 8.29 (s, 1H).

Example 51 3-(2-Cyanophenyl)-5-(3-methoxypyridin-5-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.92 (s, 3H), 7.30-7.34 (m, 1H), 7.44-7.58 (m, 6H), 7.65 (ddd, 1H), 7.72 (d, 1H), 7.77-7.84 (m, 2H), 7.95 (d, 1H), 8.28-8.33 (m, 1H), 8.36-8.40 (m, 1H).

Example 52 3-(2-Cyanophenyl)-5-(2-methoxyphenyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.89 (s, 3H), 7.00 (d, 1H), 7.03-7.08 (ddd, 1H), 7.35-7.40 (m, 2H), 7.46-7.51 (ddd, 1H), 7.63-7.72 (m, 2H), 7.72 (d, 1H), 7.77-7.80 (dd, 1H), 7.82-7.88 (m, 1H), 7.95 (d, 1H), 8.47-8.52 (d, 1H), 8.75-8.80 (m, 1H), 8.96 (brs, 1H).

Example 53 3-(2-Cyanophenyl)-5-[2-methoxy-5-(2-cyanophenyl)]-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.97 (s, 3H), 7.12 (d, 1H), 7.41-7.50 (m, 2H), 7.54-7.62 (m, 3H), 7.62-7.68 (ddd, 2H), 7.70-7.80 (m, 4H), 8.03 (d, 1H), 8.32-8.38 (m, 1H), 8.71-8.76 (m, 1H), 8.93 (brs, 1H).

Example 54 3-(2-Cyanophenyl)-5-(6-methyl-2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.56 (s, 3H), 7.42-7.70 (m, 10H), 7.71-7.78 (m, 2H), 7.89-7.93 (m, 1H), 8.46-8.54 (m, 1H).

The following compounds were synthesized by the method which is the same as or according to the method mentioned in Example 4.

Example 55 3-(2-Methoxyphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 3.76 (3H, s), 7.00 (1H, dt), 7.09 (1H, d), 7.25-7.40 (3H, m), 7.46-7.60 (4H, m), 7.76-7.84 (2H, m), 7.94 (1H, d), 8.23 (1H, d), 8.38 (1H, d), 8.55-8.58 (1H, m).

Example 56 3-(2-Methoxyphenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.82 (3H, s), 6.97-7.05 (2H, m), 7.16-7.23 (2H, m), 7.24-7.32 (1H, m), 7.36 (1H, dt), 7.44 (1H, dd), 7.50-7.66 (2H, m), 7.74-7.90 (1H, m), 8.02-8.08 (1H, m), 8.18-8.45 (2H, m), 8.58-8.64 (1H, m).

Example 57 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 6.76-6.81 (2H, m), 6.86-6.91 (1H, m), 7.17-7.22 (2H, m), 7.26-7.75 (5H, m), 7.61 (1H, d), 7.78-7.86 (1H, m), 8.11 (1H, d), 8.41 (1H, brs), 8.60-8.64 (1H, m).

Example 58 3-(2-Methoxycarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 3.65 (3H, s), 7.28-7.32 (1H, m), 7.47-7.71 (8H, m), 7.78-7.86 (2H, m), 8.01-8.20 (1H, m), 8.33 (1H, d), 8.42 (1H, d), 8.58-8.60 (1H, m).

Example 59 3-(2-Methylaminocarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 2.65 (3H, d), 7.26-7.31 (1H, m), 7.40-7.45 (1H, m), 7.46-7.53 (5H, m), 7.53-7.59 (2H, m), 7.80-7.86 (1H, m), 7.96 (1H, d), 8.06-8.12 (1H, m), 8.22 (1H, d), 8.37 (1H, d), 8.57-8.60 (1H, m).

Example 60 3-(2-Tolyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 2.24 (3H, s), 7.22-7.34 (4H, m), 7.47-7.60 (5H, m), 7.78-7.84 (1H, m), 7.99 (1H, d), 8.21-8.24 (1H, m), 8.44-8.47 (1H, m), 8.55-8.59 (1H, m).

Example 61 3-Phenyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.28-7.32 (1H, m), 7.35-7.40 (1H, m), 7.41-7.47 (2H, m), 7.49-7.54 (2H, m), 7.56-7.60 (3H, m), 7.76-7.86 (3H, m), 8.02 (1H, dd), 8.42 (1H, d), 8.44 (1H, d), 8.58-8.61 (1H, m).

Example 62 3-(2-Pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.29-7.40 (2H, m), 7.50-7.63 (5H, m), 7.80-7.88 (2H, m), 7.99 (1H, d), 8.50 (1H, d), 8.54 (1H, d), 8.62-8.66 (1H, m), 8.70-8.74 (1H, m), 9.31 (1H, d).

Example 63 3-(3-Cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.24 (ddd, 1H), 7.46-7.66 (m, 8H), 7.78 (td, 1H), 8.10 (dt, 1H), 8.16 (t, 1H), 8.25 (d, 1H), 8.31 (d, 1H), 8.61-8.63 (m, 1H).

Example 64 3-(4-Cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.22-7.26 (m, 1H), 7.47-7.60 (m, 6H), 7.70-7.78 (m, 3H), 7.95-7.98 (m, 2H), 8.26 (d, 1H), 8.33 (d, 1H), 8.61-8.63 (m, 1H).

Example 65 3-(3-Chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.21-7.36 (m, 3H), 7.47-7.76 (m, 5H), 7.58-7.60 (m, 1H), 7.71-7.75 (m, 2H), 7.85 (m, 1H), 8.23-8.26 (m, 2H), 8.60-8.63 (m, 1H).

ESI-Mass; 359 [M⁺+H]

Example 66 3-(4-Chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.22 (ddd, 1H), 7.37-7.41 (m, 2H), 7.44-7.60 (m, 5H), 7.72-7.80 (m, 3H), 8.12-8.16 (m, 1H), 8.21-8.25 (m, 2H), 8.62 (ddd, 1H).

ESI-Mass; 359 [M⁺+H]

Example 67 3-(3-Pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.22-7.52 (m, 1H), 7.33-7.37 (m, 1H), 7.45-7.57 (m, 5H), 7.59-7.61 (m, 1H), 7.56 (td, 1H), 8.24-8.27 (m, 2H), 8.30 (d, 1H), 8.59 (dd, 1H), 8.61-8.63 (m, 1H), 8.95-8.96 (m, 1H).

ESI-Mass; 326 [M⁺+H]

Example 68 3-(2-Aminocarbonyl-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 5.46 (brs, 1H), 7.19 (ddd, 1H), 7.39-7.53 (m, 6H), 7.55-7.58 (m, 1H), 7.58 (brs, 1H), 7.71 (ddd, 1H), 7.82 (dd, 1H), 8.08 (d, 1H), 8.21 (d, 1H), 8.57 (dd, 1H), 8.59 (ddd, 1H).

Example 69 3-(3-Methoxyphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.84 (s, 3H), 6.92 (ddd, 1H), 7.20 (ddd, 1H), 7.31-7.38 (m, 2H), 7.42-7.55 (m, 6H), 7.57-7.59 (m, 1H), 7.73 (td, 1H), 8.23 (d, 1H), 8.24 (d, 1H), 8.60 (ddd, 1H).

ESI-Mass; 355 [M⁺+H]

Example 70 3-(4-Methoxyphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.85 (s, 3H), 6.94-6.98 (m, 2H), 7.20 (ddd, 1H), 7.42-7.55 (m, 5H), 7.57-7.60 (m, 1H), 7.73 (td, 1H), 7.77-7.81 (m, 2H), 8.18-8.20 (m, 2H), 8.59-8.20 (m, 1H).

ESI-Mass; 355 [M⁺+H]

Example 71 3-(2-Fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.13-7.22 (m, 3H), 7.31-7.59 (m, 7H), 7.66 (td, 1H), 7.74 (td, 1H), 8.22 (dd, 1H), 8.29 (d, 1H), 8.58-8.60 (m, 1H).

Example 72 3-(3-Fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.03-7.08 (m, 1H), 7.21 (ddd, 1H), 7.35-7.63 (m, 9H), 7.74 (td, 1H), 8.23 (d, 1H), 8.27 (d, 1H), 8.59-8.62 (m, 1H).

Example 73 3-(4-Fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.08-7.14 (m, 2H), 7.21 (ddd, 1H), 7.44-7.60 (m, 6H), 7.74 (td, 1H), 7.78-7.83 (m, 2H), 8.21 (d, 1H), 8.22 (d, 1H) 8.60-8.62 (m, 1H).

Example 74 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.84 (s, 3H), 6.96-7.01 (m, 1H), 7.04-7.11 (m, 2H), 7.17-7.23 (m, 1H), 7.26-7.34 (m, 2H), 7.40 (dd, 1H), 7.46-7.53 (m, 2H), 7.54-7.58 (m, 1H), 7.73 (ddd, 1H), 8.14 (d, 1H), 8.29 (d, 1H), 8.57-8.62 (m, 1H).

Example 75 3-(2,4-Dimethoxyphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.93 (s, 6H), 6.93 (d, 1H), 7.19-7.23 (m, 1H), 7.33 (dd, 1H), 7.41-7.57 (m, 6H), 7.58-7.60 (m, 1H), 7.74 (td, 1H), 8.19 (d, 1H), 8.22 (d, 1H), 8.60-8.62 (m, 1H).

ESI-Mass; 385 [M⁺+H]

Example 76 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.20-7.28 (m, 2H), 7.44-7.56 (m, 5H), 7.56-7.60 (m, 1H), 7.75 (td, 1H), 8.19-8.21 (m, 1H), 8.26 (ddd, 1H), 8.30 (d, 1H), 8.34 (t, 1H), 8.59-8.61 (m, 1H)

ESI-Mass; 344 [M⁺+H]

Example 77 3-(4-Methoxy-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.98 (s, 3H), 6.80 (d, 1H), 7.22 (ddd, 1H), 7.44-7.59 (m, 6H), 7.72-7.77 (m, 1H), 8.15 (dd, 1H), 8.21 (s, 2H), 8.50-8.52 (m, 1H), 8.59-8.62 (m, 1H).

ESI-Mass; 356 [M⁺+H]

Example 78 3-(6-Cyano-2-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.30-7.34 (ddd, 1H), 7.49-7.57 (m, 1H), 7.57-7.62 (m, 4H), 7.62-7.66 (dd, 1H), 7.82-7.87 (ddd, 1H), 8.02 (d, 1H), 8.39-8.43 (dd, 1H), 8.59-8.62 (m, 1H), 8.63 (d, 1H), 8.65 (d, 1H), 8.94-8.96 (dd, 1H).

Example 79 3-(6-Cyano-2-pyridyl)-5-phenyl-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.33-7.38 (m, 1H), 7.44 (d, 1H), 7.46 (d, 1H), 7.64 (d, 1H), 7.65 (d, 1H), 7.72-7.76 (dd, 2H), 8.07-8.11 (m, 1H), 8.30 (d, 1H), 8.34 (d, 1H), 8.42 (dd, 1H), 8.68-8.71 (dd, 1H), 8.82-8.84 (dd, 1H), 8.93-8.86 (dd, 1H).

Example 80 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.85 (s, 3H), 6.99-7.10 (m, 3H), 7.20-7.31 (m, 2H), 7.40-7.47 (m, 1H), 7.58 (d, 1H), 7.76 (ddd, 1H), 8.18-8.23 (m, 1H), 8.23-8.32 (m, 2H), 8.32-8.37 (m, 1H), 8.58-8.64 (m, 1H).

Example 81 3-(2-Methoxy-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 3.98 (s, 3H), 6.96 (dd, 1H), 7.18-7.22 (m, 1H), 7.44-7.59 (m, 6H), 7.74 (dt, 1H), 7.90 (dd, 1H), 8.17 (dd, 1H), 8.25-8.28 (m, 2H), 8.58-8.61 (m, 1H).

Example 82 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.18-7.30 (m, 4H), 7.46-7.52 (m, 2H), 7.58 (d, 1H), 7.76 (ddd, 1H), 8.20-8.27 (m, 2H), 8.29 (d, 1H), 8.31-8.35 (m, 1H), 8.59-8.64 (m, 1H).

Example 83 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(pyrimidin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.25-7.32 (m, 2H), 7.61 (d, 1H), 7.79 (ddd, 1H), 8.16-8.22 (m, 1H), 8.24-8.27 (m, 1H), 8.29 (d, 1H), 8.34-8.37 (m, 1H), 8.61-8.64 (m, 1H), 9.01 (s, 2H), 9.32 (s, 1H).

Example 84 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 2.53 (s, 3H), 7.20-7.28 (m, 2H), 7.36-7.43 (m, 4H), 7.57 (d, 1H), 7.75 (td, 1H), 8.19-8.27 (m, 2H), 8.28 (d, 1H), 8.33 (t, 1H), 8.59-8.61 (m, 1H).

ESI-Mass; 390 [M⁺+H]

Example 85 3-(2-Pyridon-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 6.67 (d, 1H), 7.21-7.26 (m, 1H), 7.45-7.59 (m, 6H), 7.75 (td, 1H), 7.96 (dd, 1H), 8.14 (d, 1H), 8.26 (d, 1H), 8.32 (m, 1H), 8.62 (m, 1H).

ESI-Mass; 342 [M⁺+H]

Example 86 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(4-methoxy-3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 4.00 (s, 3H), 6.88 (dd, 1H), 7.22-7.29 (m, 2H), 7.44-7.79 (m, 5H), 8.20-8.24 (m, 1H), 8.27-8.29 (m, 1H), 8.33-8.36 (m, 1H), 8.61 (ddd, 1H).

Example 87 3-(2-Fluoro-3-pyridyl)-5-phenyl-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.31-7.37 (m, 1H), 7.41-7.48 (m, 2H), 7.52-7.66 (m, 2H), 7.71-7.76 (d, 2H), 8.06-8.10 (m, 1H), 8.16-8.28 (m, 4H), 8.66-8.70 (dd, 1H), 8.80-8.82 (d, 1H).

Example 88 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz); δ (ppm) 7.17-7.33 (m, 5H), 7.48-7.55 (m, 1H), 7.56-7.61 (m, 1H), 7.76 (ddd, 1H), 8.20-8.27 (m, 2H), 8.29 (d, 1H), 8.32-8.35 (m, 1H), 8.59-8.63 (m, 1H).

Example 89 3-(2-Dimethylamino-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (CDCl₃, 400 MHz): δ (ppm) 1.70 (s, 6H), 7.19 (ddd, 1H), 7.41-7.60 (m, 7H), 7.71 (td, 1H), 7.82 (d, 1H), 8.08 (d, 1H), 8.21 (d, 1H), 8.57 (dd, 1H), 8.58-8.60 (m, 1H).

ESI-Mass; 369 [M⁺+H]

The following compounds were synthesized by the same method as mentioned in Example 7.

Example 90 3,5-Diphenyl-1-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.33-7.40 (3H, m), 7.41-7.47 (4H, m), 7.54 (2H, dd), 7.76 (2H, dd), 7.86-7.90 (2H, m), 7.99 (1H, ddd), 8.11 (1H, d), 8.61-8.64 (1H, m).

Example 91 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18-7.25 (m, 3H), 7.44-7.55 (m, 3H), 7.59-7.67 (m, 2H), 7.72-7.81 (m, 3H), 8.27-8.33 (m, 2H), 8.58-8.63 (m, 1H).

Example 92 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.15-7.25 (m, 2H), 7.28-7.36 (m, 2H), 7.44-7.54 (m, 2H), 7.58-7.68 (m, 2H), 7.72-7.82 (m, 3H), 8.28-8.33 (m, 2H), 8.57-8.63 (m, 1H).

Example 93 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-cyanophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.26 (m, 1H), 7.49 (dt, 1H), 7.61-7.86 (m, 9H), 7.28-8.30 (m, 2H), 8.60-8.62 (m, 1H).

Example 94 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-cyanophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.26 (m, 1H), 7.49 (dt, 1H), 7.61-7.89 (m, 9H), 8.30 (s, 2H), 8.60-8.62 (m, 1H).

Example 95 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.86 (s, 3H), 7.02 (d, 2H), 7.21 (ddd, 1H), 7.42-7.80 (m, 8H), 8.29 (d, 1H), 8.31 (d, 1H), 8.58-8.60 (m, 1H).

Example 96 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.85 (s, 3H), 6.95-7.03 (m, 1H), 7.06-7.10 (m, 2H), 7.20-7.22 (m, 1H), 7.41-7.81 (m, 7H), 8.31 (s, 2H), 8.59-8.61 (m, 1H).

Example 97 3-Phenyl-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.15-7.24 (m, 2H), 7.26-7.33 (m, 2H), 7.34-7.40 (m, 1H), 7.40-7.53 (m, 3H), 7.57-7.62 (m, 1H), 7.72-7.82 (m, 3H), 8.20-8.23 (m, 2H), 8.59-8.63 (m, 1H).

Example 98 3-Phenyl-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18-7.24 (m, 3H), 7.34-7.39 (m, 1H), 7.40-7.45 (m, 2H), 7.46-7.52 (m, 2H), 7.57-7.61 (m, 1H), 7.72-7.77 (m, 1H), 7.77-7.82 (m, 2H), 8.19-8.23 (m, 2H), 8.59-8.62 (m, 1H).

Example 99 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.16-7.24 (m, 3H), 7.29-7.35 (m, 2H), 7.45-7.54 (m, 4H), 7.56 (d, 1H), 7.70-7.76 (m, 1H), 8.12 (d, 1H), 8.28 (d, 1H), 8.58-8.62 (m, 1H).

Example 100 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-formylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.27 (m, 1H), 7.48 (ddd, 1H), 7.60-7.69 (m, 2H), 7.72-7.82 (m, 5H), 8.03-8.09 (m, 2H), 8.29 (d, 1H), 8.33 (d, 1H), 8.58-8.62 (m, 1H), 10.10 (s, 1H).

Example 101 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-formylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20-7.25 (m, 1H), 7.44-7.52 (m, 2H), 7.61-7.70 (m, 3H), 7.73-7.83 (m, 4H), 8.06 (dd, 1H), 8.31 (d, 1H), 8.36 (d, 1H), 8.57-8.60 (m, 1H), 10.05 (s, 1H).

Example 102 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-chlorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.25 (m, 1H), 7.43-7.50 (m, 4H), 7.55-7.58 (m, 1H), 7.59-7.68 (m, 2H), 7.73-7.81 (m, 3H), 8.27-8.31 (m, 2H), 8.58-8.62 (m, 1H).

Example 103 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-tolyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.43 (s, 3H), 7.20-7.23 (m, 1H), 7.26-7.35 (m, 3H), 7.39-7.48 (m, 2H), 7.60-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.31 (s, 2H), 8.58-8.61 (m, 1H).

Example 104 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-trifluoromethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.25 (m, 1H), 7.47 (t, 1H), 7.61-7.82 (m, 9H), 8.31 (s, 2H), 8.59-8.62 (m, 1H).

Example 105 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(thiophen-3-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.25 (m, 1H), 7.37-7.49 (m, 3H), 7.59-7.67 (m, 3H), 7.74-7.80 (m, 3H), 8.27 (d, 1H), 8.40 (d, 1H), 8.60-8.62 (m, 1H).

Example 106 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-furfuryl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.83-6.86 (m, 1H), 7.19-7.26 (m, 1H), 7.48 (ddd, 1H), 7.52 (dd, 1H), 7.60-7.69 (m, 2H), 7.73-7.82 (m, 3H), 8.21 (d, 1H), 8.27-8.30 (m, 1H), 8.47 (d, 1H), 8.61-8.65 (m, 1H).

Example 107 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-tolyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.41 (s, 3H), 7.18-7.22 (m, 1H), 7.30-7.46 (m, 5H), 7.59-7.65 (m, 2H), 7.71-7.80 (m, 3H), 8.29 (d, 1H), 8.31 (d, 1H), 8.58-8.60 (m, 1H).

Example 108 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-trifluoromethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.25 (m, 1H), 7.48 (td, 1H), 7.61-7.82 (m, 9H), 8.30 (d, 1H), 8.32 (d, 1H), 8.59-8.61 (m, 1H).

Example 109 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-methoxypyridyn-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.00 (s, 3H), 6.88 (d, 1H), 7.23 (ddd, 1H), 7.47 (td, 1H), 7.59-7.62 (m, 1H), 7.65 (td, 1H), 7.73-7.82 (m, 4H), 8.28-8.31 (m, 3H), 8.60 (ddd, 1H).

ESI-Mass; 381 [M⁺+H]

Example 110 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-cyanophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26-7.35 (m, 2H), 7.52-7.58 (m, 2H), 7.64-7.71 (m, 2H), 7.72-7.85 (m, 5H), 8.51 (d, 1H), 8.68-8.72 (m, 1H), 8.77 (d, 1H).

Example 111 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(pyrimidin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.32 (m, 1H), 7.48-7.54 (m, 1H), 7.61-7.72 (m, 2H), 7.73-7.85 (m, 3H), 8.31 (d, 1H), 8.33 (d, 1H), 8.60-8.65 (m, 1H), 9.04 (s, 2H), 9.32 (s, 1H).

Example 112 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-[2-(pyrrolidin-1-yl)-pyridin-5-yl]-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.01-2.07 (m, 4H), 3.49-3.52 (m, 4H), 6.44 (dd, 1H), 7.21 (ddd, 1H), 7.45 (td, 1H), 7.58-7.67 (m, 3H), 7.72 (dd, 1H), 7.76-7.88 (m, 2H), 8.23 (dd, 1H), 8.28 (dd, 2H), 8.59 (ddd, 1H).

ESI-Mass; 420 [M⁺+H]

Example 113 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-[2-(4-benzylpiperazin-1-yl)-pyridin-5-yl]-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.57 (t, 4H), 3.63 (t, 4H), 3.57 (s, 2H), 6.70 (d, 1H), 7.21 (ddd, 1H), 7.25-7.38 (m, 5H), 7.45 (td, 1H), 7.58 (d, 1H), 7.63 (td, 1H), 7.68 (dd, 1H), 7.73 (dd, 1H), 7.75-7.79 (m, 2H), 8.26-8.29 (m, 3H), 8.58-8.60 (m, 1H).

Example 114 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-benzyloxyethoxypyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.84-3.87 (m, 2H), 4.55-4.58 (m, 2H), 4.64 (s, 2H), 6.93 (d, 1H), 7.23 (ddd, 1H), 7.25-7.40 (m, 5H), 7.47 (td, 1H), 7.60 (d, 1H), 7.65 (td, 1H), 7.74-7.82 (m, 4H), 8.27 (d, 1H), 8.28 (d, 1H), 8.30 (d, 1H), 8.59-8.61 (m, 1H).

ESI-Mass; 501 [M⁺+H]

Example 115 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-benzyloxymethylpyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.64 (s, 2H), 4.66 (s, 2H), 7.23-7.26 (m, 1H), 7.26-7.38 (m, 5H), 7.48 (td, 1H), 7.61 (d, 1H), 7.68 (td, 1H), 7.74-7.81 (m, 3H), 7.95-7.98 (m, 1H), 8.29 (d, 1H), 8.32 (d, 1H), 8.61 (d, 1H), 8.69 (d, 1H), 8.72 (d, 1H).

ESI-Mass; 471 [M⁺+H]

Example 116 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-ethylthiopyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.41 (t, 3H), 3.23 (q, 2H), 7.23 (ddd, 1H), 7.29 (dd, 1H), 7.47 (td, 1H), 7.60 (dt, 1H), 7.65 (td, 1H), 7.72 (dd, 1H), 7.74-7.80 (m, 3H), 8.28 (d, 1H), 8.30 (d, 1H), 8.57 (dd, 1H), 8.60 (ddd, 1H).

Example 117 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.26 (m, 1H), 7.49 (td, 1H), 7.55-7.57 (m, 2H), 7.61 (d, 1H), 7.67 (td, 1H), 7.73-7.81 (m, 3H), 8.29 (d, 1H), 8.30 (d, 1H), 8.61 (ddd, 1H), 8.82 (d, 2H).

ESI-Mass; 351 [M⁺+H]

Example 118 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.91 (s, 3H), 7.22-7.27 (m, 1H), 7.46-7.51 (m, 2H) 7.60-7.64 (m, 1H), 7.66 (ddd, 1H), 7.74-7.82 (m, 3H), 8.30 (d, 1H), 8.32 (d, 1H), 8.38 (d, 1H), 8.43 (d, 1H), 8.60-8.63 (m, 1H).

Example 119 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-hydroxyethoxypyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.04 (brs, 1H), 3.97-4.03 (m, 2H), 4.51-4.54 (m, 2H), 6.93 (d, 1H), 7.23 (dd, 1H), 7.47 (td, 1H), 7.61 (dd, 1H), 7.65 (td, 1H), 7.74-7.80 (m, 3H), 7.84 (dd, 1H), 8.27-8.30 (m, 3H), 8.61 (ddd, 1H).

ESI-Mass; 411 [M⁺+H]

Example 120 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-chloropyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.28 (m, 1H), 7.47-7.52 (m, 2H), 7.61 (d, 1H), 7.67 (t, 1H), 7.72-7.81 (m, 3H), 7.95 (dd, 1H), 8.28 (d, 1H), 8.30 (d, 1H), 8.59 (d, 1H), 8.61 (dt, 1H).

ESI-Mass; 385 [M⁺+H]

Example 121 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-[2-(4-methylpiperazin-1-yl)-pyridin-5-yl]-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.37 (s, 3H), 2.54 (t, 4H), 3.66 (t, 4H), 6.73 (d, 1H), 7.21 (ddd, 1H), 7.46 (td, 1H), 7.59 (d, 1H), 7.64 (td, 1H), 7.70 (dd, 1H), 7.72-7.79 (m, 3H), 8.27-8.29 (m, 3H), 8.58-8.60 (m, 1H).

ESI-Mass; 449 [M⁺+H]

Example 122 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(3-tert-butyldimethylsilyloxymethylpyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 0.13 (s, 6H), 0.95 (s, 9H), 4.85 (s, 2H), 7.24 (dd, 1H), 7.45-7.81 (m, 7H), 7.88 (s, 1H), 8.29 (d, 1H), 8.32 (d, 1H), 8.61 (dd, 1H), 8.68 (d, 1H).

Example 123 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-fluoropyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.11 (dd, 1H), 7.25 (ddd, 1H), 7.42-7.84 (m, 6H), 8.08 (ddd, 1H), 8.30 (t, 2H), 8.41 (dd, 1H), 8.61 (ddd, 1H).

ESI-Mass; 369 [M⁺+H]

Example 124 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-ethylpyridine-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.36 (t, 3H), 2.91 (q, 2H), 7.23 (m, 1H), 7.33 (d, 1H), 7.47 (td, 1H), 7.60 (d, 1H), 7.65 (td, 1H), 7.73-7.80 (m, 3H), 7.86 (dd, 1H), 8.30 (d, 1H), 8.31 (d, 1H), 8.60 (d, 1H), 8.68 (d, 1H).

ESI-Mass; 379 [M⁺+H]

Example 125 3-Phenyl-5-(2-pyridyl)-1-(2-cyanophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.24-7.54 (6H, m), 7.62-7.81 (4H, m), 7.93 (1H, dt), 8.11 (1H, d), 8.57 (1H, d), 8.69-8.72 (1H, m), 8.89-8.94 (1H, m).

Example 126 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-methoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 3.80 (3H, s), 7.12 (1H, t), 7.24-7.33 (2H, m), 7.44 (1H, dd), 7.49 (1H, dt), 7.59 (1H, dt), 7.71 (1H, d), 7.75-7.86 (2H, m), 7.90-8.00 (2H, m), 8.42 (1H, d), 8.47 (1H, d), 8.56-8.60 (1H, m).

The following compounds were synthesized by the same method as mentioned in Example 32.

Example 127 3-Phenyl-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23 (ddd, 1H), 7.36-7.50 (m, 4H), 7.60 (td, 1H), 7.75 (dd, 1H), 7.76-7.80 (m, 2H), 7.94 (ddd, 1H), 8.22 (d, 1H), 8.24 (d, 1H), 8.62 (ddd, 1H), 8.71 (dd, 1H), 8.75-8.79 (m, 1H).

ESI-Mass; 326 [M⁺+H]

Example 128 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23 (ddd, 1H), 7.31-7.36 (m, 2H), 7.41-7.51 (m, 3H), 7.56-7.59 (m, 1H), 7.75 (td, 1H), 7.95 (ddd, 1H), 8.15 (d, 1H), 8.30 (d, 1H), 8.60-8.62 (m, 1H), 8.69 (dd, 1H), 8.80 (d, 1H).

ESI-Mass; 360 [M⁺+H]

Example 129 3-(2-Methoxyphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydro pyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.84 (s, 3H), 6.98-7.05 (m, 2H), 7.21 (ddd, 1H), 7.37 (td, 1H), 7.41-7.49 (m, 2H), 7.56 (d, 1H), 7.74 (td, 1H), 7.94-7.97 (m, 1H), 8.13 (d, 1H), 8.25 (d, 1H), 8.58-8.60 (m, 1H), 8.67 (dd, 1H), 8.79 (d, 1H).

ESI-Mass; 356 [M⁺+H]

Example 130 3-(2-Formylthiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.28 (m, 1H), 7.46-7.52 (m, 2H), 7.57 (d, 1H), 7.50-7.79 (m, 2H), 7.92-7.96 (m, 1H), 8.24 (d, 1H), 8.30 (d, 1H), 8.61-8.63 (m, 1H), 8.74 (dd, 1H), 8.79 (d, 1H), 9.99 (d, 1H).

Example 131 3-(2,4-Dichlorophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.25 (m, 1H), 7.32 (dd, 1H), 7.41-7.61 (m, 4H), 7.74-7.79 (m, 1H), 7.93-7.96 (m, 1H), 8.15 (d, 1H), 8.29 (d, 1H), 8.59-8.63 (m, 1H), 8.69-8.72 (m, 1H), 8.79 (d, 1H).

ESI-Mass; 394 [M⁺+H]

Example 132 3-(2-Trifluoromethylphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22 (ddd, 1H), 7.44-7.56 (m, 4H), 7.59-7.63 (m, 2H), 7.72-7.78 (m, 1H), 7.94 (ddd, 1H), 8.04 (d, 1H), 8.30 (d, 1H), 8.59-8.61 (m, 1H), 8.69 (dd, 1H), 8.78-8.79 (m, 1H).

ESI-Mass; 394 [M⁺+H]

Example 133 3-(Thiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.39 (dd, 1H), 7.50 (dd, 1H), 7.60-7.63 (m, 1H), 7.65 (dd, 1H), 7.77 (td, 1H), 7.93 (ddd, 1H), 8.15 (d, 1H), 8.32 (dd, 1H), 8.44 (d, 1H), 8.62-8.64 (m, 1H), 8.72-8.73 (m, 1H), 8.77 (d, 1H).

ESI-Mass; 332 [M⁺+H]

Example 134 3-(1-tert-Butoxycarbonylpyrrol-2-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.47 (s, 9H), 6.25 (t, 1H), 6.36-6.34 (m, 1H), 7.21 (dd, 1H), 7.37 (dd, 1H), 7.43-7.48 (m, 1H), 7.57 (d, 1H), 7.72-7.77 (m, 1H), 7.88-7.92 (m, 1H), 8.06 (d, 1H), 8.22 (d, 1H), 8.59-8.61 (m, 1H), 8.68 (dd, 1H), 8.76 (d, 1H).

ESI-Mass; 415 [M⁺+H]

Example 135 3-(2,6-Dimethylphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.23 (s, 6H), 7.11-7.27 (m, 3H), 7.45-7.55 (m, 3H), 7.65-8.02 (m, 2H), 8.20-8.33 (m, 1H), 8.59-8.61 (m, 1H), 8.68-8.81 (m, 3H).

ESI-Mass; 354 [M⁺+H]

Example 136 3-(3-Acetylaminophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.08 (s, 3H), 7.21-7.26 (m, 1H), 7.34 (d, 1H), 7.44-7.49 (m, 2H), 7.58-7.61 (m, 2H), 7.75 (td, 1H), 7.82 (brs, 1H), 7.86 (m, 1H), 7.89-7.92 (m, 1H), 8.20-8.23 (m, 2H), 8.59-8.61 (m, 1H), 8.69-8.71 (m, 1H), 8.77-8.78 (m, 1H).

ESI-Mass; 383 [M⁺+H]

Example 137 3-(2-Cyanothiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.26 (m, 1H), 7.50 (dd, 1H), 7.61-7.74 (m, 3H), 7.79 (td, 1H), 7.91-7.94 (m, 1H), 8.36 (d, 1H), 8.57 (d, 1H), 8.60-8.61 (m, 1H), 8.74 (dd, 1H), 8.79 (d, 1H).

ESI-Mass; 357 [M⁺+H]

Example 138 3-(2-Cyano-6-methoxyphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃): δ (ppm) 3.82 (s, 3H), 7.18-7.27 (m, 2H), 7.35-7.38 (dd, 1H), 7.43-7.50 (m, 2H), 7.60 (d, 1H), 7.74-7.80 (ddd, 1H), 7.98-8.02 (m, 1H), 8.16 (d, 1H), 8.35 (d, 1H), 8.59-8.62 (m, 1H), 8.67-8.72 (dd, 1H), 8.83 (d, 1H).

Example 139 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.29 (m, 2H), 7.45-7.52 (m, 1H), 7.59 (d, 1H), 7.78 (dt, 1H), 7.91-7.95 (m, 1H), 8.19-8.25 (m, 2H), 8.30 (d, 1H), 8.35 (t, 1H), 8.60-8.63 (m, 1H), 8.70-8.73 (m, 1H), 8.79 (d, 1H).

The following compound was synthesized by the same method as mentioned in Example 15.

Example 140 3-(2-Aminocarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 7.17 (1H, brs), 7.26-7.31 (1H, m), 7.40-7.64 (10H, m), 7.82 (1H, dt), 7.96 (1H, d), 8.21 (1H, d), 8.36 (1H, d), 8.56-8.59 (1H, m).

The following compounds were synthesized by the same method as mentioned in Example 18.

Example 141 3-(2-Hydroxyphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 6.87-6.93 (2H, m), 7.22 (1H, dt) 7.30 (1H, ddd), 7.38 (1H, dd), 7.48-7.60 (5H, m), 7.82 (1H, dt), 7.99 (1H, d), 8.41 (1H, d), 8.45 (1H, d), 8.57-8.60 (1H, m), 9.43 (1H, s).

Example 142 3-(2-Hydroxyphenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 6.86-6.93 (2H, m), 7.22 (1H, dt), 7.30 (1H, ddd), 7.36-7.44 (3H, m), 7.62-7.68 (2H, m), 7.83 (1H, dt), 7.98 (1H, d), 8.40 (1H, d), 8.45 (1H, d), 8.57-8.60 (1H, m), 9.40 (1H, s).

Example 143 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.71-6.76 (m, 1H), 6.85-6.91 (m, 2H), 7.19-7.34 (m, 4H), 7.41-7.50 (m, 2H), 7.56 (d, 1H), 7.74 (ddd, 1H), 8.17 (d, 1H), 8.23 (d, 1H), 8.58-8.62 (m, 1H).

The following compounds were synthesized by the same method as mentioned in Example 19.

Example 144 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.89 (s, 6H), 3.41 (t, 2H), 4.54 (t, 2H), 6.99-7.04 (m, 1H), 7.13 (dd, 1H), 7.14-7.18 (m, 1H), 7.21 (ddd, 1H), 7.30-7.35 (m, 2H), 7.43-7.51 (m, 3H), 7.58 (d, 1H), 7.74 (ddd, 1H), 8.15 (d, 1H), 8.28 (d, 1H), 8.59-8.62 (m, 1H).

Example 145 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(4-dimethylaminopropoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.98 (tt, 2H), 2.26 (s, 6H), 2.46 (t, 2H), 4.06 (t, 2H), 6.97-7.03 (m, 2H), 7.19 (ddd, 1H), 7.28-7.33 (m, 2H), 7.39-7.44 (m, 2H), 7.46-7.51 (m, 2H), 7.53-7.58 (m, 1H), 7.72 (ddd, 1H), 8.12 (d, 1H), 8.28 (d, 1H), 8.58-8.61 (m, 1H).

Example 146 3-(2-Chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminopropoxyphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.96 (tt, 2H), 2.25 (s, 6H), 2.44 (t, 2H), 4.05 (t, 2H), 6.95-7.01 (m, 1H), 7.04-7.11 (m, 2H), 7.17-7.24 (m, 1H), 7.28-7.35 (m, 2H), 7.36-7.43 (m, 1H), 7.45-7.53 (m, 2H), 7.56 (d, 1H), 7.73 (ddd, 1H), 8.14 (d, 1H), 8.29 (d, 1H), 8.58-8.63 (m, 1H).

The following compounds were synthesized by the same method as mentioned in Example 21.

Example 147 3-(2-Hydroxymethylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (DMSO-d₆; 400 MHz); δ (ppm) 4.46 (2H, d), 5.04 (1H, t), 7.24-7.60 (10H, m), 7.78-7.84 (1H, m), 7.96-8.00 (1H, m), 8.25 (1H, d), 8.45 (1H, d), 8.55-8.59 (1H, m).

Example 148 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-hydroxymethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.81 (t, 1H), 4.78 (d, 2H), 7.19-7.24 (m, 1H), 7.46 (ddd, 1H), 7.51-7.55 (m, 4H), 7.59-7.66 (m, 2H), 7.72-7.80 (m, 3H), 8.28-8.32 (m, 2H), 8.58-8.61 (m, 1H).

Example 149 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-hydroxymethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.35 (dd, 1H), 4.52 (dd, 1H), 4.62 (dd, 1H), 7.21-7.24 (m, 1H), 7.35 (dd, 1H), 7.46-7.57 (m, 3H), 7.60-7.69 (m, 3H), 7.72-7.81 (m, 3H), 8.26 (d, 1H), 8.36 (d, 1H), 8.58-8.62 (m, 1H).

The following compounds were synthesized by the same method as mentioned in Example 22.

Example 150 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-cyanomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.84 (s, 2H), 7.23 (ddd, 1H), 7.47 (ddd, 1H), 7.49-7.54 (m, 2H), 7.55-7.63 (m, 3H), 7.65 (ddd, 1H), 7.73-7.81 (m, 3H), 8.28-8.32 (m, 2H), 8.58-8.62 (m, 1H).

Example 151 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-cyanomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.81 (d, 1H), 3.91 (d, 1H), 7.24 (ddd, 1H), 7.39-7.44 (m, 1H), 7.46-7.58 (m, 3H), 7.62 (d, 1H), 7.64-7.71 (m, 3H), 7.73-7.81 (m, 2H), 8.22 (d, 1H), 8.34 (d, 1H), 8.59-8.63 (m, 1H).

The following compounds were synthesized by the same method as mentioned in Example 27.

Example 152 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-ethylsulfonylpyridin-5-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.36 (t, 3H), 3.47 (q, 2H), 7.26-7.29 (m, 1H), 7.51 (td, 1H), 7.63 (d, 1H), 7.68 (td, 1H), 7.71-7.82 (m, 3H), 8.23-8.29 (m, 2H), 8.31-8.33 (m, 2H), 8.61-8.63 (m, 1H), 8.97-8.98 (m, 1H).

ESI-Mass; 443 [M⁺+H]

Example 153 3-(2-Fluoro-3-pyridyl)-5-(2-pyridyl)-1-(4-methylsulfonylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.11 (s, 3H), 7.24-7.30 (m, 2H), 7.60 (d, 1H), 7.75-7.80 (m, 3H), 8.12 (t, 1H), 8.14 (t, 1H), 8.17-8.24 (m, 2H), 8.30 (d, 1H), 8.35 (t, 1H), 8.61-8.63 (m, 1H).

ESI-Mass; 422 [M⁺+H]

The following compounds were synthesized by the same manner as mentioned in Example 29.

Example 154 3-(2-Dimethylaminomethylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one dihydrochloride

¹H-NMR (DMSO-d₆, 400 MHz); δ (ppm) 2.06 (6H, s), 3.37 (2H, s), 7.25-7.39 (4H, m), 7.44-7.61 (6H, m), 7.81 (1H, dt), 7.96 (1H, d), 8.24 (1H, d), 8.43 (1H, d), 8.55-8.58 (1H, m).

Example 155 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-dimethylaminomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.16 (s, 6H), 3.30 (d, 1H), 3.46 (d, 1H), 7.18-7.23 (m, 1H), 7.34-7.38 (m, 1H), 7.40-7.49 (m, 3H), 7.55-7.66 (m, 3H), 7.70-7.79 (m, 3H), 8.21 (d, 1H), 8.37 (d, 1H), 8.58-8.61 (m, 1H).

Example 156 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(4-dimethylaminomethylphenyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.28 (s, 6H), 3.49 (s, 2H), 7.22 (ddd, 1H), 7.43-7.49 (m, 5H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.30 (d, 1H), 8.33 (d, 1H), 8.58-8.61 (m, 1H).

Example 157 3-(2-Cyanophenyl)-5-(6-diethylaminomethyl-2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.49 (6H, t), 3.10-3.33 (4H, m), 4.36 (2H, brs), 7.46-7.60 (7H, m), 7.63-7.68 (2H, m), 7.79-7.89 (3H, m), 8.28 (1H, d), 8.39 (1H, d).

The following compound was synthesized by the same method as mentioned in Example 31.

Example 158 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-phenethyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.18 (t, 2H), 4.33 (t, 2H), 7.19 (ddd, 1H), 7.22-7.34 (m, 3H), 7.39 (d, 1H), 7.43-7.50 (m, 3H), 7.62-7.74 (m, 4H), 7.96 (d, 1H), 8.18 (d, 1H), 8.56-8.60 (m, 1H).

Example 159 3-(2-Cyanophenyl)-1-(2-pyridyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

A mixture of 0.05 g of 1-(2-pyridyl)-S-(2-pyridyl)-3-bromo-1,2-dihydropyridin-2-one, 0.04 g of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 0.02 g of tetrakistriphenylphosphine palladium and 0.1 g of cesium carbonate was stirred at 120° C. in a nitrogen atmosphere for 2 hours in dimethylformamide. The mixture was diluted with water, and extracted with ethyl acetate. The organic layer was washed with water and then saturated saline water, and dried by magnesium sulfate anhydride. The solvent was concentrated under a vacuum, and the residue was refined by silica gel chromatography (ethyl acetate/hexane=3:1), to obtain 0.04 g of the white, powdery subject compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.33 (dd, 1H), 7.56-7.64 (m, 2H), 7.75 (d, 1H), 7.78-7.83 (m, 1H), 7.84-7.90 (m, 2H), 7.95 (d, 1H), 8.00 (d, 1H), 8.07 (dt, 1H), 8.50 (d, 1H), 8.61 (d, 1H), 8.70 (d, 1H), 8.83 (d, 1H).

Example 160 1-(2-Cyanophenyl)-3-(2-pyridyl)-5-phenyl-1,2-dihydropyridin-2-one

5 ml of a dimethylformamide solution containing 0.26 g of 3-(2-pyridyl)-5-phenyl-2(1H)-pyridone was incorporated with 0.04 g of sodium hydride. After 15 minutes, the solution was further incorporated with 0.15 g of 2-fluorobenzonitrile and 0.10 g of cuprous iodide, and vigorously stirred at 100° C. for 2 hours. The solution was cooled to room temperature, diluted with water, and extracted with ethyl acetate. The organic layer was washed with water and then saturated saline water, and dried by magnesium sulfate anhydride. The solvent was distilled off under a vacuum. The residue was refined by silica gel chromatography (ethyl acetate/hexane=1:2), to obtain 0.03 g of the light yellow, powdery subject compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.34-7.42 (m, 2H), 7.45-7.50 (m, 2H), 7.70-7.78 (m, 3H), 7.84-7.90 (m, 2H), 7.96 (dt, 1H), 8.11 (d, 1H), 8.31 (d, 1H), 8.47 (dd, 1H), 8.71-8.74 (m, 1H), 8.88 (d, 1H).

Example 161 1-Phenyl-3-(1-phenylacetylen-2-yl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

100 mg of 3-bromo-1-phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-one, 55 mg of phenylacetylene, 1 mg of copper (I) iodide and 4 mg of dichlorobis(triphenylphosphine) palladium were added to a mixed solvent of 1.5 ml of triethylamine and 1 ml of dimethylformamide, and stirred at 50° C. in a nitrogen atmosphere for a night. The reaction mixture was distributed into the ethyl acetate and water layers. The organic layer was washed with water, dried and concentrated, and the residue was refined by silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 7 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22 (dd, 1H), 7.33-7.35 (m, 3H), 7.46-7.60 (m, 8H), 7.75 (dt, 1H), 8.26 (d, 1H), 8.34 (d, 1H), 8.60 (ddd, 1H).

Example 162 5-(5-Acetoxypyridin-2-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one 162a 3-(2-Cyanophenyl)-1-phenyl-5-(tri-n-butyl stannyl)-1,2-dihydropyridin-2-one

5.50 g of 5-bromo-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one, 45.5 g of bistributyl tin and 907 mg of tetrakistriphenylphosphine palladium were added to 60 ml of xylene, and the mixture was stirred at 120° C. in a nitrogen atmosphere for 40 minutes. The reaction mixture was refined by silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 3.42 g of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 0.90 (t, 9H), 1.07-1.11 (m, 6H), 1.30-1.39 (m, 6H), 1.52-1.60 (m, 6H), 7.29 (d, 1H), 7.39-7.47 (m, 5H), 7.49-7.52 (m, 2H), 7.60 (d, 1H), 7.71-7.75 (m, 2H).

162b 5-(5-acetoxypyridin-2-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

3.42 g of 3-(2-cyanophenyl)-1-phenyl-5-(tri-n-butyl stannyl)-1,2-dihydropyridin-2-one, 1.57 g of 5-acetoxy-2-chloropyridine and 352 mg of tetrakistriphenylphosphine palladium were added to 40 ml of xylene, and the mixture was stirred at 120° C. in a nitrogen atmosphere for 8.5 hours. The reaction mixture was refined by silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 953 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.36 (s, 3H), 7.44-7.56 (m, 6H), 7.62-7.68 (m, 3H), 7.77-7.80 (m, 2H), 8.27 (d, 1H), 8.28 (d, 1H), 8.40 (dd, 1H).

Example 163 3-(2-Cyanophenyl)-5-(5-hydroxypyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

953 mg of 5-(5-acetoxypyridin-2-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one and 192 mg of potassium carbonate were added to 50 ml of methanol, and the mixture was stirred at room temperature for 30 minutes. The mixture was further incorporated with 50 ml of methanol, and stirred at 40° C. for 15 minutes. The reaction mixture was diluted with ethyl acetate, and filtered by silica gel. The filtrate was concentrated under a vacuum and washed with a ether/methanol-based solvent, to obtain 786 mg of the subject compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.19 (dd, 1H), 7.49-7.52 (m, 1H), 7.55-7.61 (m, 5H), 7.71 (dd, 1H), 7.78 (dt, 1H), 7.82 (d, 1H), 7.93 (dd, 1H), 8.14 (d, 1H), 8.34 (d, 1H), 8.37 (d, 1H).

Example 164 3-(2-Cyanophenyl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

63 mg of 2-tributyl tin pyrimidine, prepared in accordance with Tetrahedron 50 (1), 275, (1994), 50 mg of 5-bromo-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one and 5 mg tetrakistriphenylphosphine palladium were added to 2 ml of xylene, and the mixture was stirred at 120° C. in a nitrogen atmosphere for a night. The reaction mixture was refined by silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 10 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.15 (t, 1H), 7.44-7.54 (m, 6H), 7.64 (dt, 1H), 7.72-7.78 (m, 2H), 8.70 (s, 1H), 8.71 (s, 1H), 8.72 (d, 1H), 8.76 (d, 1H).

Example 165 3-(2-Hydroxypyridin-6-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

20 mg of 3-(2-methoxypyridin-6-yl)-1-phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-one is added to 3 ml of 5N hydrochloric acid. The mixture was heated under reflux for 3 hours, to which 0.5 ml of concentrated hydrochloric acid was added, and further stirred for 1 hour. The reaction mixture was concentrated under a vacuum and washed with ether, to quantitatively obtain the subject compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 6.44 (d, 1H), 7.08 (brs, 1H), 7.47 (dd, 1H), 7.52-7.62 (m, 6H), 8.02-8.06 (m, 1H), 8.18 (d, 1H), 8.62 (d, 1H), 8.68 (dd, 1H), 8.82 (dd, 1H).

Example 166 1-(2-Aminobenzothiazol-6-yl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

150 mg of 1-(3-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one and 63 mg of ammonium thiocyanate were added to 2 ml of acetic acid. The mixture was stirred at room temperature for 1 hour, to which 0.022 ml of bromine was added, and further stirred for 1 hour. The reaction mixture was distributed into the ethyl acetate and water layers, and neutralized with 20% aqueous solution of potassium carbonate. The organic layer was washed with water, dried and concentrated, and the residue was refined by silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 58 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 5.37 (brs, 1H), 6.76 (d, 1H), 7.20-7.24 (m, 1H), 7.41-7.80 (m, 8H), 8.28-9.40 (m, 2H), 8.59-8.61 (m, 1H).

Example 167 1,3-Diphenyl-4-methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

The subject compound was obtained, at a yield of 27%, in accordance with the method for Referential Examples 4, 5 and 6 and Example 32 from 2,5-dibromo-4-methylpyridine.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.10 (s, 3H), 7.27 (ddd, 1H), 7.30-7.51 (m, 12H), 7.76 (ddd, 1H), 8.66-8.70 (m, 1H).

Example 168 1-Phenyl-3-[N—(N′-phenylureylenyl)]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

50 mg of 3-amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one and 25 mg of phenyl isocyanate were dissolved in 1 ml of tetrahydrofuran, and the solution was stirred at room temperature for 2 hours and at 60° C. for 2 hours. The reaction solution was left to cool to room temperature, to which diethyl ether was added. The resultant crystal was separated by filtration, to obtain 30 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.03-7.14 (m, 3H), 7.17-7.33 (m, 4H), 7.38-7.44 (m, 2H), 7.45-7.50 (m, 2H), 7.59 (br s, 1H), 7.68-7.76 (m, 2H), 8.02 (d, 1H), 8.54-8.57 (m, 1H), 8.58 (br s, 1H), 9.00 (d, 1H).

Example 169 3-Benzoylamino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

30 mg of 3-amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 1 ml of methylene chloride and 1 ml of pyridine, to which 19 mg of benzoyl chloride was added with cooling with ice, and the mixture was stirred at room temperature for a night. The reaction mixture was concentrated, diluted with ethyl acetate, and washed with a saturated aqueous solution of sodium bicarbonate. The organic layer was dried by magnesium sulfate, and refined by NH silica gel chromatography (ethyl acetate). The solvent was concentrated, and the resultant crude crystal was washed with ethyl acetate/hexane, to obtain 35 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23 (ddd, 1H), 7.47-7.60 (m, 8H), 7.70-7.80 (m, 2H), 7.95-8.00 (m, 2H), 8.12 (d, 1H), 8.57-8.61 (m, 1H), 9.28 (d, 1H), 9.35 (br s, 1H).

Example 170 3-Benzylamino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

40 mg of 3-amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one and 10 mg of sodium hydride were added to 1 ml of toluene, to which 30 mg of benzyl chloride was added dropwise at 70° C. The mixture was stirred for 30 minutes, and heated for 1 hour under reflux. The reaction mixture was left to cool to room temperature, diluted with ethyl acetate, and washed with a water and a saturated saline water. The organic layer was dried by magnesium sulfate, and refined by NH silica gel chromatography (ethyl acetate/hexane-based solvent), to obtain 13 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.48 (d, 2H), 5.60 (br t, 1H), 6.86 (d, 1H), 7.15 (ddd, 1H), 7.26-7.32 (m, 1H), 7.34-7.40 (m, 2H), 7.40-7.56 (m, 9H), 7.66 (ddd, 1H), 8.55-8.58 (m, 1H).

Example 171 3-(2-Cyanophenyl)-1-cyclopentyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

2.00 g of 3-bromo-5-(2-pyridyl)-1,2-dihydropyridin-2-one as the stock material was N-alkylated by the normal method with 5.94 g of bromocyclopentane and 5.50 g of potassium carbonate, to obtain 506 mg of 3-bromo-1-cyclopentyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one, 150 mg of which was treated in accordance with the method for Example 32, to obtain 120 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.73-2.02 (m, 6H), 2.23-2.35 (m, 2H), 5.37 (quintet, 1H), 7.20 (ddd, 1H), 7.45 (ddd, 1H), 7.57 (d, 1H), 7.64 (ddd, 1H), 7.70-7.79 (m, 3H), 8.11 (d, 1H), 8.36 (d, 1H), 8.59-8.63 (m, 1H).

Example 172 1-{3-[1-(Benzyloxycarbonyl)piperidin-4-yl-oxy]phenyl}-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

0.99 g of 3-bromo-1-(3-hydroxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one was obtained in accordance with the method for Example 18 from 1.02 g of 3-bromo-1-(3-methoxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one, synthesized in accordance with the method for Referential Example 6. It was dissolved 30 ml of tetrahydrofuran and 10 ml of N,N-dimethylformamide, to which 1.52 g of triphenyl phosphine and 1.36 g of N-benzyloxycarbonyl-4-piperidinol were added, and further 2.52 g of a 40% toluene solution of diethylazodicarboxylate was added dropwise with cooling with ice, and the mixture was stirred at room temperature for a night. The reaction solution was concentrated under a vacuum and refined by silica gel chromatography (ethyl acetate/hexane-based solvent) to obtain 0.98 g of 1-{3-[N-(benzyloxycarbonyl)piperidin-4-yl-oxy]phenyl}-3-bromo-5-(2-pyridyl)-1,2-dihydropyridin-2-one, from which 0.85 g of the subject compound was obtained in accordance with the method for Example 32.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.73-1.87 (m, 2H), 1.88-2.02 (m, 2H), 3.43-3.52 (m, 2H), 3.70-3.80 (m, 2H), 4.50-4.58 (m, 1H), 5.14 (s, 2H), 6.98-7.02 (m, 1H), 7.06-7.11 (m, 2H), 7.22 (dd, 1H), 7.30-7.38 (m, 5H), 7.40-7.49 (m, 2H), 7.60 (ddd, 1H), 7.64 (ddd, 1H), 7.72-7.80 (m, 3H), 8.29 (d, 1H), 8.31 (d, 1H), 8.58-8.61 (m, 1H).

Example 173 3-(2-Cyanophenyl)-5-(2-pyridyl 1-oxide)-1-phenyl-1,2-dihydropyridin-2-one

1.00 g of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 30 ml of chloroform, to which 0.99 g of 60% m-chloroperbenzoic acid was added, and the mixture was stirred at room temperature for 2 hours. Another 1.00 g of 60% m-chloroperbenzoic acid was added to the mixture, and the mixture was stirred for 3 hours. The reaction solution was incorporated with 50 ml of an aqueous solution of 1N sodium hydroxide, and extracted with ethyl acetate. The organic layer was washed with saturated saline water, dried by magnesium sulfate anhydride, and the solvent was distilled off under a vacuum. The residue was recrystallized from ethyl acetate/diethyl ether, to obtain 0.46 g of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.27 (m, 1H), 7.36 (dt, 1H), 7.43-7.48 (m, 2H), 7.50-7.54 (m, 4H), 7.61 (dd, 1H), 7.63 (dt, 1H), 7.78 (dd, 1H), 7.81-7.85 (m, 1H), 8.10 (d, 1H), 8.21 (dd, 1H), 8.83 (d, 1H).

Example 174 3-Phenylamino-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

53 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and 23 mg of aniline were dissolved in 10 ml of toluene, to which 2 mg of palladium acetate, 7 mg of 1,1′-bis(diphenylphosphino)ferrocene and 23 mg of sodium tert-butoxide were added, and the mixture was stirred at 110° C. for a night. The reaction solution was cooled to room temperature, filtered by silica gel and washed with ether, and the filtrate was distilled under a vacuum to remove the solvent. The residue was refined by silica gel chromatography (NH silica) (hexane/ethyl acetate-based solvent), to obtain 47 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.06 (tt, 1H), 7.15-7.19 (m, 2H), 7.29-7.31 (m, 2H), 7.38 (tt, 2H), 7.43-7.56 (m, 5H), 7.67 (d, 1H), 7.69 (td, 1H), 7.75 (d, 1H), 8.58 (ddd, 1H).

ESI-Mass; 340 [M⁺+H]

Example 175 3-Phenoxy-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

100 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and 58 mg of phenol were dissolved in 10 ml of dimethylformamide, to which 84 mg of potassium carbonate and 6 mg of copper iodide were added, and the mixture was stirred at 150° C. for 5 hours. The reaction solution was cooled to room temperature, to which ammonia water was added, and extracted with ethyl acetate. The organic layer was washed with saturated saline water and dried by magnesium sulfate anhydride, and the solvent was distilled off under a vacuum. The residue was refined by silica gel chromatography (hexane/ethyl acetate-based solvent), to obtain 66 mg of the subject compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.13-7.19 (m, 3H), 7.26-7.27 (m, 2H), 7.36-7.54 (m, 7H), 7.60-7.61 (m, 1H), 7.66-7.71 (m, 1H), 8.03-8.04 (m, 1H), 8.54-8.57 (m, 1H).

ESI-Mass; 341 [M⁺+H]

Example 176 3-(1-Adamantylamino)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

27 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and 130 mg of 1-adamantylamine were dissolved in 10 ml of dimethylformamide. To the mixture was added 20 mg of sodium hydride, followed by stirring at 130° C. in nitrogen atmosphere. After the reaction solution was cooled to room temperature, a saturated aqueous solution of ammonium chloride and water were added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 3 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.19-2.29 (m, 16H), 7.06-7.33 (m, 3H), 7.34-7.61 (m, 5H), 7.66-7.69 (m, 1H), 8.08-8.11 (m, 2H).

ESI-Mass; 398 [M⁺+H]

Example 177 3-[4-(2-Cyanophenyl)piperadin-1-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

29 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 200 mg of 1-(2-cyanophenyl)piperazine, followed by heating at 130° C. for 72 hours. After the reaction solution was cooled to room temperature, water was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 8 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.20-3.22 (m, 4H), 3.50-3.56 (m, 4H), 7.00-7.13 (m, 3H), 7.32-7.61 (m, 10H), 7.79-7.84 (m, 2H).

ESI-Mass; 434 [M⁺+H]

Example 178 3-(1-Adamantyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

40 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of tetrahydrofuran. To the mixture were added 5 mg of [1,1-bis(diphenylphosphino)ferrocene]dichloropalladium (II) and 1.2 mg of copper (I) iodide. While stirring the mixture at room temperature in nitrogen atmosphere overnight, 0.4 ml of 1-adamantyl zinc bromide (0.5M tetrahydrofuran solution) was added dropwise thereinto. After stirring in nitrogen atmosphere overnight, an aqueous ammonia was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.44-2.19 (m, 15H), 7.13 (ddd, 1H), 7.31-7.55 (m, 6H), 7.66 (td, 1H), 7.93 (d, 1H), 8.05 (d, 1H), 8.55-8.58 (m, 1H).

ESI-Mass; 383 [M⁺+H]

Example 179 3-(1,1-Dichlorohexyl-1-hydroxymethyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

13 mg of 3-methoxycarbonyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of tetrahydrofuran, followed by the dropwise addition of 0.05 ml of cyclohexyl magnesiumchloride (2.0M diethyl ether solution) in nitrogen atmosphere, under ice-cooling and stirring. After the mixture was stirred for 3 hr while heating to room temperature, a saturated aqueous solution of ammonium chloride was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 8 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 0.89-1.84 (m, 20H), 2.72-2.90 (m, 2H), 7.12-7.06 (m, 1H), 7.25-7.49 (m, 8H), 7.59-7.68 (m, 1H), 8.50-8.54 (m, 1H).

ESI-Mass; 443 [M⁺+H]

Example 180 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(1-benzyl-1,2,3,6-tetrahydropyridin-5-yl)-1,2-dihydropyridin-2-one

718 mg of 3-bromo-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 40 ml of acetonitrile. 383 mg of benzyl bromide was added thereto, followed by stirring at 70° C. overnight. Further, 383 mg of benzyl bromide was added thereto, followed by stirring at 70° C. for 2 nights. After cooling to room temperature, the mixture was evaporated. The residue was dissolved in 30 ml of methanol, followed by cooling to 0° C. under stirring. 265 mg of sodium borohydride was added thereto, followed by stirring overnight under heating from 0° C. to room temperature. Water was added thereto, the solvent was evaporated, and then the residue was extracted with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 550 mg of 3-bromo-5-(2-pyridyl)-1-(1-benzyl-1,2,3,6-tetrahydropyridin-5-yl)-1,2-dihydropyridin-2-one. 270 mg of the product was dissolved in 20 ml of dimethylformamide. 179 mg of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 313 mg of cesium carbonate and 15 mg of tetrakistriphenylphosphinepalladium were added thereto, followed by stirring at 120° C. for 1 hour. After cooling to room temperature, water was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 174 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.40 (m, 2H), 2.70 (t, 2H), 3.43 (d, 2H), 3.68 (s, 2H), 6.05 (t, 1H), 7.21 (dd, 1H), 7.24 (m, 1H), 7.30 (t, 2H), 7.36 (d, 2H), 7.44 (t, 1H), 7.54 (d, 1H), 7.63 (t, 1H), 7.70-7.77 (m, 3H), 8.19 (d, 1H), 8.23 (d, 1H), 8.60 (dd, 1H).

Example 181 3-(2-Cyanophenyl)-5-phenylaminocarbonyl-1-phenyl-1,2-dihydropyridin-2-one

41 mg of carboxylate obtained by hydrolyzing the ester group of 3-(2-cyanophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 5 ml of dichloromethane. Under ice-cooling, a solution of 25 mg of oxalyl chloride in dichloromethane was added dropwise thereinto and a catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature in nitrogen atmosphere for 1 hour. The reaction solution was evaporated, and the residue was dissolved in dichloromethane. The solution was added dropwise into a solution of 13 mg of aniline and 0.03 ml of triethylamine in dichloromethane under ice-cooling. After heating to room temperature, it was stirred in nitrogen atmosphere for 3 hours. Under ice-cooling, the mixture was poured into a saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 11 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.15 (tt, 1H), 7.33-7.39 (m, 2H), 7.55-7.42 (m, 6H), 7.56-7.60 (m, 2H), 7.65 (td, 1H), 7.73-7.79 (m, 2H), 7.85 (brs, 1H), 8.06 (d, 1H), 8.25 (d, 1H).

Example 182 3-(2-Cyanophenyl)-5-(1-phenylbenzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

24 mg of carboxylate obtained by hydrolyzing the ester group of 3-(2-cyanophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of dichloromethane. Under ice-cooling, a solution of 16 mg of oxalyl chloride in dichloromethane was added dropwise thereinto. A catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature in nitrogen atmosphere for 1 hour. The reaction solution was evaporated, and the residue was dissolved in dichloromethane. The solution was added dropwise into a solution of 21 mg of N-phenyl-1,2-phenylenediamine in dichloromethane, under ice-cooling. The mixture was heated to room temperature, followed by stirring in nitrogen atmosphere overnight. Dichlotomethane was evaporated, 10 ml of acetic acid was added, and the mixture was stirred at 100° C. for 5 hours. After cooling to room temperature, acetic acid was evaporated. Under ice-cooling, the residue was poured into a saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 18 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.19-7.30 (m, 4H), 7.33-7.37 (m, 1H), 7.39-7.43 (m, 4H), 7.44-7.45 (m, 1H), 7.46-7.47 (m, 1H), 7.55-7.61 (m, 3H), 7.61-7.66 (m, 2H), 7.68 (d, 1H), 7.71 (dd, 1H), 7.81-7.84 (m, 1H), 7.87 (d, 1H).

ESI-Mass; 465 [M⁺+H]

Example 183 3-(2-Chlorophenyl)-5-(2-benzothiazolyl)-1-phenyl-1,2-dihydropyridin-2-one

19 mg of carboxylate obtained by hydrolyzing the ester group of 3-(2-chlorophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one (synthesized from 3-bromo-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one and 2-chlorophenylboronic acid in accordance with the method for Referential Example 3) was dissolved in 20 ml of dichloromethane. Under ice-cooling, a solution of 11 mg of oxalyl chloride in dichloromethane was added dropwise thereinto and a catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature in nitrogen atmosphere for 1 hour. The reaction solution was evaporated, and the residue was dissolved in dichloromethane. The solution was added dropwise into a solution of 22 mg of 2-aminobenzothiol in dichloromethane under ice-cooling. After heating to room temperature, dichloromethane was evaporated. To the residue was added 1 ml of polyphosphoric acid, followed by stirring at 180° C. overnight. After cooling to room temperature, the reaction mixture was neutralized with 1N aqueous solution of sodium hydroxide and saturated aqueous solution of sodium hydrogen carbonate under ice-cooling and extracted with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 4 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.32-7.35 (m, 2H), 7.37-7.41 (m, 1H), 7.46-7.51 (m, 4H), 7.51-7.55 (m, 4H), 7.87-7.89 (m, 1H), 8.00 (d, 1H), 8.14 (d, 1H), 8.42 (d, 1H).

ESI-Mass; 415 [M⁺+H]

Example 184 3-(2-Chlorophenyl)-5-(2-benzoxazolyl)-1-phenyl-1,2-dihydropyridin-2-one

19 mg of carboxylate obtained by hydrolyzing the ester group of 3-(2-chlorophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one (synthesized from 3-bromo-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one and 2-chlorophenylboronic acid in accordance with the method of Referential Example 3) was dissolved in 20 ml of dichloromethane. Under ice-cooling, a solution of 11 mg of oxalyl chloride in dichloromethane was added dropwise thereinto and a catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature in nitrogen atmosphere for 1 hour. The reaction solution was evaporated, and the residue was dissolved in dichloromethane. The solution was added dropwise into a solution of 19 mg of 2-aminophenol in dichloromethane under ice-cooling. After heating to room temperature, dichloromethane was evaporated. To the residue was added 1 ml of polyphosphoric acid, followed by stirring at 180° C. overnight. After cooling to room temperature, the reaction mixture was neutralized with 1N aqueous solution of sodium hydroxide and saturated aqueous solution of sodium hydrogen carbonate under ice-cooling. The mixture was extracted with ethyl acetate, and the resulting organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 3 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.31-7.38 (m, 4H), 7.45.7.57 (m, 8H), 7.69-7.71 (m, 1H), 8.29 (d, 1H), 8.49 (d, 1H).

ESI-Mass; 399 [M⁺+H]

Example 185 3-(2-Chlorophenyl)-5-phenoxymethyl-1-phenyl-1,2-dihydropyridin-2-one

24 mg of 3-(2-Chlorophenyl)-5-hydroxymethyl-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of tetrahydrofuran. 9.4 mg of phenol, 33 mg of triphenylphosphine polymer (3 mmol/g resin) and 17 mg of 1,1′-azobis(N,N-dimethylformamide) were added thereto, followed by stirring at 60° C. overnight. Further, 50 mg of triphenylphosphine polymer (3 mmol/g resin) and 30 mg of 1,1′-azobis(N,N-dimethylformamide) were added, followed by stirring at 60° C. overnight. After cooling to room temperature, ethyl acetate was added thereto and the triphenylphosphine polymer was removed by filtration through Celite. The filtrate was washed with water and 1N aqueous solution of sodium hydroxide. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.87 (s, 2H), 6.97 (dd, 2H), 7.01 (dd, 1H), 7.26-7.34 (m, 4H), 7.40-7.51 (m, 7H), 7.54-7.56 (m, 1H), 7.60 (d, 1H).

ESI-Mass; 388 [M⁺+H]

Example 186 3-(2-Cyanophenyl)-5-(1-methyl-1,2,3,6-tetrahydropyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

99 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of acetonitrile. 2 ml of methyl benzenesulfonate was added thereto, followed by stirring at 100° C. for 2 nights. After cooling to room temperature, the solvent was evaporated. The residue was dissolved in 10 ml of methanol, followed by cooled to 0° C. under stirring. Sodium borohydride was added 5 times at intervals of 5 hours, 1 g for each time, followed by further stirring at 0° C. overnight. Then the solvent was evaporated and a saturated aqueous solution of ammonium chloride was added to the residue, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 107 mg of 3-bromo-5-(1-methyl-1,2,3,6-tetrahydropyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one. The product was dissolved in 10 ml of dimethylformamide. 81 mg of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 142 mg of cesium carbonate and 7 mg of tetrakistriphenylphosphine palladium were added thereto, followed by stirring at 140° C. for 2 hours. After cooling to room temperature, water was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 41 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.26 (s, 3H), 2.30-2.50 (m, 1H), 2.90-2.98 (m, 1H), 3.15 (dd, 1H), 3.31-3.40 (m, 1H), 3.85 (t, 1H), 5.72-5.78 (m, 1H), 5.79-5.85 (m, 1H), 7.40 (d, 1H), 7.40-7.57 (m, 5H), 7.60 (td, 1H), 7.64-7.70 (m, 1H), 7.72-7.73 (m, 1H), 7.74-7.75 (m, 1H), 7.76 (d, 1H).

Example 187 3-(2-Pyridylethenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

23 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of acetonitrile. To the mixture were added 0.2 mg of palladium acetate, 4.3 mg of tri-o-tolylphosphine and 0.04 ml of triethylamine, followed by stirring at 110° C. in nitrogen atmosphere overnight. To the mixture was added 9.2 mg of 2-vinylpyridine, followed by stirring at 110° C. in nitrogen atmosphere for 5 hours. After cooling to room temperature, the reaction mixture was poured into water, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 2 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.12-7.16 (m, 1H), 7.18-7.23 (m, 1H), 7.36 (d, 1H), 7.44-7.51 (m, 3H), 7.51-7.55 (m, 2H), 7.57-7.60 (m, 1H), 7.64 (dt, 1H), 7.70-7.79 (m, 1H), 7.78-7.82 (m, 1H), 8.03-8.07 (m, 1H), 8.24 (d, 1H), 8.28 (d, 1H), 8.57-8.63 (m, 2H).

ESI-Mass; 352 [M⁺+H]

Example 188 3-(4-Chlorophenylthio)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

25 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of dimethylformamide. To the mixture were added 3 mg of sodium hydroxide and 2 mg of copper iodide, followed by stirring at 150° C. in nitrogen atmosphere overnight. After cooling to room temperature, the reaction mixture was poured into water. An aqueous ammonia was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 8 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.17 (ddd, 1H), 7.30 (d, 1H), 7.39-7.56 (m, 9H), 7.61 (d, 1H), 7.67 (td, 1H), 8.08 (d, 1H), 8.52-8.54 (m, 1H).

ESI-Mass; 391 [M⁺+H]

Example 189 3-(2-Chlorophenyl)-5-cyclohexyl-1-phenyl-1,2-dihydropyridin-2-one

30 mg of 5-bromo-3-(2-chlorophenyl)-1-phenyl-1,2-dihydropyridin-2-one synthesized from 5-bromo-1-phenyl-3-iodo-1,2-dihydropyridin-2-one and 2-chlorophenyl boronic acid in accordance with the method of Referential Example 3 was dissolved in 20 ml of tetrahydrofuran, followed by adding 1 mg of [1,3-bis(diphenylphosphino)propane]nickel (II) chloride. Under stirring in nitrogen atmosphere, 0.1 ml of cyclohexyl magnesium chloride (2.0M ether solution) was added dropwise thereinto. After stirring at room temperature in nitrogen atmosphere overnight, the mixture was heated under reflux for 1 hour. After cooling to room temperature, a saturated aqueous solution of ammonium chloride was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (chloroform/methanol system), to give 6 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.15-1.47 (m, 5H), 1.53-1.93 (m, 5H), 2.35 (m, 1H), 6.99-7.34 (m, 3H), 7.36-7.60 (m, 8H).

ESI-Mass; 364 [M⁺+H]

Example 190 3-(1H-Benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

25 mg of carboxylate obtained by de-protecting the ester group of 3-methoxycarbonyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one in a convention manner was dissolved in 20 ml of dichloromethane. Under ice-cooling, a solution of 16 mg of oxalyl chloride in dichloromethane was added dropwise thereinto and a catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature in nitrogen atmosphere for 1 hour. The reaction solution was evaporated, and to the residue was added dichloromethane. The solution was added dropwise into a solution of 17 mg of o-phenylenediamine in dichloromethane under ice-cooling. After heating to room temperature, the mixture was stirred in nitrogen atmosphere overnight. Dichloromethane was evaporated, followed by adding methanol and heating under reflux for 5 hours. After cooling to room temperature, the reaction mixture was poured into an ice-cooled saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was refined by silica gel chromatography (hexane/ethyl acetate system), to give 1.3 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.10-7.94 (m, 13H), 8.57 (d, 1H), 8.60 (m, 1H), 9.43 (d, 1H).

ESI-Mass; 365 [M⁺+H]

Example 191 3-(2-Pyridon-1-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

40 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and 23 mg of 2-hydroxypyridine were dissolved in 10 ml of dimethylformamide. 34 mg of potassium carbonate and 3 mg of copper iodide were added thereto, followed by stirring at 140° C. overnight. After cooling the reaction mixture to room temperature, an aqueous ammonia was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (NH silica) (chloroform/methanol system), to give 10 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.24 (td, 1H), 6.69 (dd, 1H), 7.22 (dd, 1H), 7.37-7.42 (m, 2H), 7.45-7.57 (m, 6H), 7.73 (td, 1H), 8.33 (d, 1H), 8.36 (d, 1H), 8.58-8.60 (m, 1H).

Example 192 3-Cyclohexyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

34 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of tetrahydrofuran, followed by adding 1 mg of [1,3-bis(diphenylphosphino)propane]nickel (II) chloride. Under stirring in nitrogen atmosphere, 0.1 ml of cyclohexyl magnesium chloride (2.0M ether solution) was added dropwise thereinto. The mixture was stirred at room temperature in nitrogen atmosphere for 1 hour, followed by heating under reflux for 72 hours. After cooling to room temperature, water was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (chloroform/methanol system), to give 5 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.22-1.52 (m, 5H), 1.73-1.80 (m, 1H) 1.81-1.89 (m, 2H), 1.97-2.04 (m, 2H), 2.90-2.99 (m, 1H), 7.18 (ddd, 1H), 7.53-7.55 (m, 6H), 7.71 (td, 1H), 7.78 (dd, 1H), 8.04 (d, 1H), 8.59 (ddd, 1H).

Example 193 3-[2-(5-Methyl-1,2,4-oxadiazol-3-yl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

53 mg of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of ethanol containing 20% of water. 19 mg of hydroxylamine hydrochloride and 17 mg of sodium acetate were added thereto, followed by heating under reflux for 24 hours. Further, 19 mg of hydroxylamine hydrochloride and 17 mg of sodium acetate were added thereto, followed by heating under reflux for 36 hours. After cooling to room temperature, the mixture was evaporated, and the resulting crystals were washed with water, dried, and 50 mg of amidoxime compound was collected by filtration. 20 mg of the product was dissolved in 4 ml of toluene. 16 mg of acetic anhydride was added thereto, followed by heating under reflux for 96 hours. After cooling to room temperature, the mixture was neutralized with potassium carbonate under ice-cooling. After extracting with ethyl acetate, the extract was successively washed with water and brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 4 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.56 (s, 3H), 7.18 (ddd, 1H), 7.38-7.59 (m, 8H), 7.72 (ddd, 1H), 7.71 (ddd, 1H), 8.08 (ddd, 1H), 8.11 (d, 1H), 8.27 (d, 1H), 8.58 (ddd, 1H).

ESI-Mass; 410 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 1.

Example 194 3-(2-Cyanophenyl)-5-(1-methylpyrazol-4-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.01 (s, 3H), 7.46-7.56 (m, 8H), 7.62-7.68 (m, 3H), 7.78-7.81 (m, 2H).

Example 195 3-(2-Cyanophenyl)-5-(6-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.56 (s, 3H), 7.07 (d, 1H), 7.40-7.66 (m, 9H), 7.76-7.80 (m, 2H), 8.28 (d, 1H), 8.30 (d, 1H).

Example 196 3-(2-Cyanophenyl)-5-(5-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.36 (s, 3H), 7.42-7.56 (m, 8H), 7.63 (dt, 1H), 7.76-7.80 (m, 2H), 8.26 (d, 1H), 8.28 (d, 1H), 8.41-8.42 (m, 1H).

Example 197 3-(2-Cyanophenyl)-5-(4-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.36 (s, 1H), 7.43-7.57 (m, 8H), 7.63 (dt, 1H), 7.77-7.80 (m, 2H), 8.27 (d, 1H), 8.28 (d, 1H), 8.41-8.42 (m, 1H).

Example 198 3-(2-Cyanophenyl)-5-(3-hydroxypyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20 (dd, 1H), 7.31 (dd, 1H), 7.51-7.60 (m, 6H), 7.68 (dd, 1H), 7.75 (dt, 1H), 7.83 (dd, 1H), 8.11 (dd, 1H), 8.51 (d, 1H), 8.55 (d, 1H).

Example 199 3-(2-Cyanophenyl)-1-phenyl-5-(2-pyrazyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.57 (m, 6H), 7.66 (dt, 1H), 7.75-7.81 (m, 2H), 8.33 (d, 1H), 8.35 (d, 1H), 8.50 (d, 1H), 8.55 (dd, 1H), 8.93 (d, 1H).

Example 200 3-(2-Cyanophenyl)-5-(2-methoxypyridin-5-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.69 (s, 3H), 6.67 (d, 1H), 7.18 (d, 1H), 7.44-7.66 (m, 8H), 7.78-7.81 (m, 2H), 8.27 (d, 1H), 8.34 (d, 1H).

Example 201 3-(2-Cyanophenyl)-1-phenyl-5-(2-thiazoyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.31 (d, 1H), 7.45-7.56 (m, 6H), 7.65 (dt, 1H), 7.72 (dd, 1H), 7.77-7.80 (m, 2H), 8.18 (d, 1H), 8.25 (d, 1H).

Example 202 3-(2-Cyanophenyl)-1-phenyl-5-(4-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.59 (m, 7H), 7.66 (dt, 1H), 7.76-7.81 (m, 2H), 8.31 (d, 1H), 8.56 (d, 1H), 8.74 (d, 1H), 9.16 (d, 1H).

Example 203 3-(2-Cyanophenyl)-1-phenyl-5-(5-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.47-7.58 (m, 6H), 7.66 (dt, 1H), 7.75 (d, 1H), 7.78-7.81 (m, 2H), 7.92 (d, 1H), 8.92 (s, 2H), 9.22 (s, 1H).

Example 204 3-(2-Cyanophenyl)-1-phenyl-5-(3-pyridazyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.56 (m, 7H), 7.66 (dt, 1H), 7.77-7.83 (m, 3H), 8.32 (d, 1H), 8.54 (d, 1H), 9.15 (dd, 1H).

Example 205 3-(2-Cyanophenyl)-1-phenyl-5-(4-pyridazyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.48-7.61 (m, 7H), 7.67 (dt, 1H), 7.79-7.83 (m, 2H), 7.92 (d, 1H), 8.00 (d, 1H), 9.23 (dd, 1H), 9.40 (dd, 1H).

Example 206 3-(2-Cyanophenyl)-5-(2-methoxypyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.96 (s, 3H), 6.67 (dd, 1H), 7.18 (dd, 1H), 7.44-7.66 (m, 8H), 7.77-7.81 (m, 2H), 8.27 (d, 1H), 8.33 (d, 1H).

Example 207 3-(2-Cyanophenyl)-1-phenyl-5-(thiazol-4-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.57 (m, 6H), 7.66 (ddd, 1H), 7.72-7.81 (m, 3H), 7.87 (d, 1H), 7.97 (s, 1H), 8.76 (s, 1H).

Example 208 3-(2-Cyanophenyl)-5-(3-oxo-1-cyclohexen-1-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.12-2.19 (m, 2H), 2.46-2.50 (m, 2H), 2.65-2.69 (m, 2H), 6.36 (s, 1H), 7.45-7.57 (m, 6H), 7.62-7.70 (m, 2H), 7.76-7.79 (m, 2H), 7.88 (d, 1H).

Example 209 3-(2-Cyanophenyl)-5-(5,6-dihydro-1,4-dioxin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.12-4.14 (m, 2H), 4.21-4.23 (m, 2H), 7.42-7.78 (m, 12H).

Example 210 3-(2-Cyanophenyl)-5-(1-naphthyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.41-7.67 (m, 9H), 7.55-7.83 (m, 2H), 7.88-7.94 (m, 2H), 8.02 (ddd, 1H), 8.11 (d, 1H), 8.70 (d, 1H), 8.83 (d, 1H).

ESI-Mass; 400 [M⁺+H]

Example 211 3-(2-Cyanophenyl)-5-(2-naphthyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.44-7.58 (m, 4H), 7.61-7.70 (m, 3H), 7.78-7.82 (m, 2H), 7.83-7.90 (m, 2H), 7.92 (d, 1H), 7.95-7.96 (m, 1H), 8.00 (ddd, 1H), 8.12 (d, 1H), 8.72 (dd, 1H), 8.83 (d, 1H).

ESI-Mass; 400 [M⁺+H]

Example 212 3-(2-Cyanophenyl)-5-(8-quinolinyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.43-7.50 (m, 3H), 7.60-7.69 (m, 2H), 7.77 (m, 1H), 7.81-7.87 (m, 2H), 8.03-8.10 (m, 2H), 8.18 (d, 1H), 8.23 (dd, 1H), 8.68-8.72 (m, 2H), 8.87 (d, 1H), 8.98 (dd, 1H).

ESI-Mass; 401 [M⁺+H]

Example 213 3-(2-Cyanophenyl)-5-(3-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.45-7.51 (m, 1H), 7.59 (ddd, 1H), 7.64 (dd, 1H), 7.75-7.82 (m, 2H), 7.94 (d, 1H), 8.10 (ddd, 1H), 8.15-8.20 (m, 1H), 8.28 (d, 1H), 8.39-8.41 (m, 1H), 8.53-8.56 (m, 1H), 8.69 (dd, 1H), 8.84 (d, 1H), 8.98-8.90 (m, 1H).

ESI-Mass; 351 [M⁺+H]

Example 214 5-[(1-Benzenesulfonyl)indol-2-yl]-3-(2-cyanophenyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.70 (d, 1H), 7.23-7.43 (m, 4H), 7.45-7.56 (m, 5H), 7.65 (d, 1H), 7.68 (td, 2H), 7.78 (td, 2H), 7.83 (d, 1H), 8.02 (ddd, 1H), 8.30 (dd, 1H), 8.72 (dd, 1H), 8.79 (d, 1H).

ESI-Mass; 529 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 2.

Example 215 1-(4-Aminophenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.86 (brs, 1H), 6.76 (td, 2H), 7.20 (ddd, 1H), 7.28 (td, 2H), 7.44 (dt, 1H), 7.60 (td, 1H), 7.64 (dd, 1H), 7.71-7.80 (m, 3H), 8.28 (d, 1H), 8.29 (d, 1H), 8.60 (ddd, 1H).

Example 216 5-(3-Aminopyridin-2-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.05 (br s, 2H), 7.07-7.08 (m, 2H), 7.42-7.47 (m, 2H), 7.51-7.53 (m, 4H), 7.62 (ddd, 1H), 7.75-7.78 (m, 1H), 7.79-7.82 (m, 1H), 7.99 (dd, 1H), 8.06 (dd, 1H), 8.15 (dd, 1H).

Example 217 5-(5-Aminopyridin-2-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.77 (brs, 2H), 7.04 (dd, 1H), 7.39-7.52 (m, 7H), 7.60-7.64 (m, 1H), 7.76-7.80 (m, 2H), 8.08 (dd, 1H), 8.13 (d, 1H), 8.22 (d, 1H).

Example 218 1-(3-Aminophenyl)-3-(2-cyanophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.85 (brs, 2H), 6.76 (ddd, 1H), 6.84 (t, 1H), 6.86 (ddd, 1H), 7.14 (t, 1H), 7.27-7.31 (m, 1H), 7.45 (dt, 1H), 7.63 (dt, 1H), 7.71-7.78 (m, 2H), 8.69-8.71 (m, 3H), 8.75 (d, 1H).

Example 219 3-(2-Aminophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.23-7.37 (m, 3H), 7.40-7.47 (m, 1H), 7.47-7.56 (m, 2H), 7.56-7.66 (m, 5H), 7.88 (ddd, 1H), 8.08 (d, 1H), 8.46 (d, 1H), 8.58 (d, 1H), 8.59-8.64 (m, 1H).

Example 220 3-(3-Aminophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.70 (br s, 2H), 6.68-6.72 (m, 1H), 7.13-7.26 (m, 3H), 7.42-7.56 (m, 5H), 7.56-7.60 (m, 1H), 7.64-7.76 (m, 2H), 8.22 (s, 2H), 8.58-8.61 (m, 1H).

Example 221 3-(4-Aminophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.77 (br s, 2H), 6.70-6.76 (m, 2H), 7.17-7.21 (m, 1H), 7.42-7.60 (m, 6H), 7.64-7.75 (m, 3H), 8.15 (s, 2H), 8.58-8.61 (m, 1H).

Example 222 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-aminotoluen-4-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.21 (s, 3H), 3.76 (s, 2H), 6.78-6.83 (m, 2H), 7.17 (d, 1H), 7.20 (ddd, 1H), 7.44 (td, 1H), 7.58 (d, 1H), 7.63 (td, 1H), 7.73 (td, 1H), 7.78 (td, 2H), 8.29 (s, 2H), 8.59 (ddd, 1H).

ESI-Mass; 379 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 3.

Example 223 3-Benzenesulfonylamino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22 (ddd, 1H), 7.31-7.33 (m, 2H), 7.44-7.60 (m, 7H), 7.76 (dt, 1H), 7.92-7.95 (m, 2H), 7.97 (d, 1H), 8.21 (d, 1H), 8.56-8.58 (m, 1H).

Example 224 3-(2-Cyanophenyl)-5-benzenesulfonylamino-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26-7.27 (m, 1H), 7.30-7.33 (m, 2H), 7.41-7.65 (m, 10H), 7.70-7.73 (m, 1H), 7.83-7.86 (m, 2H).

Example 225 3-(2-Cyanophenyl)-5-[(3-methanesulfonylamino)pyridin-2-yl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.40 (s, 3H), 7.43-7.48 (m, 4H) 7.50-7.54 (m, 4H), 7.64-7.66 (m, 2H), 7.74 (dd, 1H), 7.95 (d, 1H), 8.20 (d, 1H), 8.77 (dd, 1H).

Example 226 3-[2-(Methylsulfonylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.96 (s, 3H), 7.25 (ddd, 1H), 7.30-7.35 (m, 1H), 7.43-7.63 (m, 9H), 7.76 (ddd, 1H), 8.30 (brs, 1H), 8.33 (d, 1H), 8.39 (d, 1H), 8.60-8.64 (m, 1H).

Example 227 3-[4-(Methanesulfonylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.01 (s, 3H), 6.57 (br s, 1H), 7.20-7.28 (m, 3H), 7.45-7.61 (m, 6H), 7.77 (ddd, 1H), 7.79-7.85 (m, 2H), 8.22 (d, 1H), 8.24 (d, 1H), 8.60-8.64 (m, 1H).

Example 228 3-[3-(Methanesulfonylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.92 (s, 3H), 6.98 (br s, 1H), 7.20-7.32 (m, 2H), 7.36-7.61 (m, 8H), 7.69-7.78 (m, 2H), 8.22 (d, 1H), 8.26 (d, 1H), 8.59-8.63 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 11.

Example 229 5-[(6-Acetylamino)pyridin-2-yl]-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.22 (s, 3H), 7.33 (dd, 1H), 7.44-7.80 (m, 10H), 7.85 (d, 1H), 8.08-8.12 (m, 1H), 8.24 (d, 1H), 8.28 (d, 1H).

Example 230 3-[2-(Acetylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 1.96 (s, 3H), 7.19-7.26 (m, 1H), 7.30 (ddd, 1H), 7.34-7.40 (m, 1H), 7.40-7.46 (m, 1H), 7.48-7.56 (m, 1H), 7.56-7.64 (m, 4H), 7.72 (d, 1H), 7.83 (ddd, 1H), 8.01 (d, 1H), 8.32 (d, 1H), 8.50 (d, 1H), 8.57-8.61 (m, 1H), 9.16 (br s, 1H).

Example 231 3-[2-(Diacetylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.28 (s, 6H), 7.18 (ddd, 1H), 7.23-7.27 (m, 1H), 7.42-7.60 (m, 9H), 7.71 (ddd, 1H), 7.95 (d, 1H), 8.35 (d, 1H), 8.54-8.58 (m, 1H).

Example 232 3-[3-(Acetylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.11 (s, 3H), 7.19-7.23 (m, 1H), 7.34-7.40 (m, 1H), 7.42-7.56 (m, 6H), 7.60 (d, 1H), 7.64-7.77 (m, 3H), 7.83-7.87 (m, 1H), 8.24 (d, 1H), 8.26 (d, 1H), 8.58-8.62 (m, 1H).

Example 233 3-[4-(Acetylamino)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.15 (s, 3H), 7.21 (ddd, 1H), 7.34 (brs, 1H), 7.44-7.57 (m, 8H), 7.59 (ddd, 1H), 7.74 (ddd, 1H), 7.80 (d, 1H), 8.21 (s, 2H), 8.59-8.62 (m, 1H).

The following compound was synthesized by the method similar to, or in accordance with, the method for Example 12.

Example 234 3-(4-Dimethylaminophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.00 (s, 6H), 6.75-6.80 (m, 2H), 7.19 (ddd, 1H), 7.41-7.54 (m, 5H), 7.57-7.60 (m, 1H), 7.73 (ddd, 1H), 7.76-7.81 (m, 2H), 8.14-8.17 (m, 2H), 8.58-8.61 (m, 1H).

The following compound was synthesized by the method similar to, or in accordance with, the method for Example 15.

Example 235 5-[(6-Aminocarbonyl)pyridin-2-yl]-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.60 (m, 6H), 7.64 (dt, 1H), 7.74 (dd, 1H), 7.80-7.83 (m, 1H), 7.91-7.95 (m, 2H), 8.14-8.17 (m, 2H), 8.52 (d, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method of Example 16, Route 1.

Example 236 3-(2-Cyanophenyl)-5-(2-cyanopyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.57 (m, 6H), 7.60 (dd, 1H), 7.66 (dt, 1H), 7.79-7.83 (m, 3H), 7.89 (dd, 1H), 8.29 (d, 1H), 8.41 (d, 1H).

Example 237 3-(3-Hydroxyphenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 6.74-6.78 (m, 1H), 7.15-7.26 (m, 3H), 7.27-7.32 (m, 1H), 7.47-7.61 (m, 5H), 7.83 (ddd, 1H), 8.02 (d, 1H), 8.41 (s, 2H), 8.57-8.62 (m, 1H), 9.43 (brs, 1H).

Example 238 3-(4-Hydroxyphenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 6.79-6.84 (m, 2H), 7.28 (ddd, 1H), 7.47-7.59 (m, 5H), 7.61-7.66 (m, 2H), 7.82 (ddd, 1H), 8.00 (d, 1H), 8.33 (d, 1H), 8.35 (d, 1H), 8.57-8.61 (m, 1H), 9.57 (brs, 1H).

The following compounds were synthesized by the same methods as in Example 19.

Example 239 3-(2-Cyanophenyl)-1-[3-(dimethylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.34 (s, 6H), 2.74 (t, 2H), 4.10 (t, 2H), 7.01-7.05 (m, 1H), 7.07-7.11 (m, 2H), 7.21 (ddd, 1H), 7.42 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

Example 240 3-(2-Cyanophenyl)-1-[3-(piperidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.39-1.48 (m, 2H), 1.56-1.64 (m, 4H), 2.46-2.56 (m, 4H), 2.78 (t, 2H), 4.14 (t, 2H), 6.99-7.03 (m, 1H), 7.06-7.11 (m, 2H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

Example 241 3-(2-Cyanophenyl)-1-[3-(pyrrolidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.76-1.86 (m, 4H), 2.57-2.70 (m, 4H), 2.92 (t, 2H), 4.16 (t, 2H), 7.03 (ddd, 1H), 7.06-7.11 (m, 2H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

Example 242 3-(2-Cyanophenyl)-1-[3-(diisopropylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.03 (d, 12H), 2.83 (t, 2H), 3.04 (heptet, 2H), 3.92 (t, 2H), 6.97-7.01 (m, 1H), 7.04 (dd, 1H), 7.07 (ddd, 1H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.82 (m, 3H), 8.29-8.32 (m, 2H), 8.58-8.61 (m, 1H).

Example 243 3-(2-Cyanophenyl)-1-[3-(dimethylaminopropyloxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.96 (tt, 2H), 2.24 (s, 6H), 2.44 (t, 2H), 4.05 (t, 2H), 7.00 (ddd, 1H), 7.05-7.09 (m, 2H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

Example 244 3-(2-Cyanophenyl)-1-[3-(piperidinopropyloxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.37-1.50 (m, 2H), 1.53-1.64 (m, 4H), 1.97 (tt, 2H), 2.30-2.45 (m, 4H), 2.47 (t, 2H), 4.04 (t, 2H), 6.97-7.02 (m, 1H), 7.04-7.09 (m, 2H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.70-7.82 (m, 3H), 8.31 (s, 2H), 8.58-8.62 (m, 1H).

Example 245 3-(2-Cyanophenyl)-1-[3-(morpholinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.48-2.65 (m, 4H), 2.81 (t, 2H), 3.68-3.80 (m, 4H), 4.15 (t, 2H), 6.99-7.04 (m, 1H), 7.06-7.13 (m, 2H), 7.22 (ddd, 1H), 7.42 (dd, 1H), 7.46 (ddd, 1H), 7.61 (dd, 1H), 7.64 (ddd, 1H), 7.74 (ddd, 1H), 7.78 (dd, 2H), 8.28-8.33 (m, 2H), 8.58-8.62 (m, 1H).

Example 246 3-(2-Cyanophenyl)-1-[3-(diethylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.07 (t, 6H), 2.64 (q, 4H), 2.89 (t, 2H), 4.08 (t, 2H), 7.01 (ddd, 1H), 7.05-7.10 (m, 2H), 7.21 (ddd, 1H), 7.41 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.81 (m, 3H), 8.31 (s, 2H), 8.58-8.61 (m, 1H).

Example 247 3-[3-(Dimethylaminoethoxy)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.34 (s, 6H), 2.74 (t, 2H), 4.13 (t, 2H), 6.92-6.98 (m, 1H), 7.19-7.24 (m, 1H), 7.33 (dd, 1H), 7.37-7.42 (m, 1H), 7.44-7.56 (m, 6H), 7.57-7.62 (m, 1H), 7.75 (ddd, 1H), 8.25 (s, 2H), 8.59-8.63 (m, 1H).

Example 248 3-[4-(Dimethylaminoethoxy)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.35 (s, 6H), 2.76 (t, 2H), 4.12 (t, 2H), 6.95-7.00 (m, 2H), 7.20 (ddd, 1H), 7.43-7.54 (m, 5H), 7.59 (ddd, 1H), 7.73 (ddd, 1H), 7.76-7.81 (m, 2H), 8.17-8.20 (m, 2H), 8.59-8.62 (m, 1H).

Example 249 3-(2-Cyanophenyl)-1-[3-(4-piperidinobutyl-1-oxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.38-1.46 (m, 2H), 1.54-1.61 (m, 4H), 1.62-1.71 (m, 2H), 1.75-1.83 (m, 2H), 2.30-2.43 (m, 6H), 4.01 (t, 2H), 6.97-7.01 (m, 1H), 7.03-7.08 (m, 2H), 7.21 (ddd, 1H), 7.40 (dd, 1H), 7.45 (ddd, 1H), 7.59-7.66 (m, 2H), 7.72-7.82 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 29.

Example 250 3-(2-Cyanophenyl)-1-[3-(pyrrolidinomethyl)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.74-1.84 (m, 4H), 2.48-2.58 (m, 4H), 3.69 (s, 2H), 7.14-7.25 (m, 2H), 7.38-7.51 (m, 4H), 7.61 (d, 1H), 7.63 (ddd, 1H), 7.72-7.82 (m, 3H), 8.30 (d, 1H), 8.32 (d, 1H), 8.58-8.62 (m, 1H).

Example 251 1-{3-[(4-Acetylpiperazino)methyl]phenyl}-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.07 (s, 3H), 2.45 (dd, 4H), 3.45 (dd, 2H), 3.58 (s, 2H), 3.63 (dd, 2H), 7.22 (ddd, 1H), 7.40-7.54 (m, 5H), 7.60-7.67 (m, 2H), 7.73-7.80 (m, 3H), 8.29 (d, 1H), 8.33 (d, 1H), 8.58-8.62 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 32.

Example 252 3-(2-Cyanophenyl)-1-(4-nitrophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.30 (m, 1H), 7.47-7.52 (m, 1H), 7.61-7.82 (m, 7H), 8.31 (dd, 1H), 8.42 (d, 1H), 8.60-8.63 (m, 1H).

Example 253 1-Phenyl-3-(2-pyrazyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.25 (m, 1H), 7.49-7.59 (m, 5H) 7.72-7.79 (m, 2H), 8.46 (d, 1H), 8.54 (d, 1H), 8.61 (ddd, 1H), 8.65 (dd, 1H), 9.14 (d, 1H), 9.87 (d, 1H).

Example 254 1-Phenyl-3-(2-pyrimidinyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20 (ddd, 1H), 7.25 (t, 1H), 7.44-7.54 (m, 4H), 7.66 (d, 1H), 7.75 (dt, 1H), 8.45 (d, 1H), 8.58-8.60 (m, 1H), 8.82 (d, 1H), 8.88 (s, 1H), 8.89 (s, 1H).

Example 255 1-Phenyl-5-(2-pyridyl)-3-(2-thiazoyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.26 (m, 1H), 7.48-7.57 (m, 6H), 7.78-7.80 (m, 1H), 8.00 (dd, 1H), 8.52 (dd, 1H), 8.59-8.61 (m, 1H), 9.29 (d, 1H).

Example 256 1-Phenyl-3-(4-pyrimidinyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.26 (m, 1H), 7.48-7.59 (m, 5H), 7.77-7.82 (m, 2H), 8.53 (d, 1H), 8.60-8.62 (m, 1H), 8.73-8.77 (m, 2H), 9.27 (dd, 1H), 9.40 (d, 1H).

Example 257 1-Phenyl-3-(5-pyrimidinyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.27 (m, 1H), 7.48-7.61 (m, 7H), 7.77 (dt, 1H), 8.28 (d, 1H), 8.37 (d, 1H), 8.63 (ddd, 1H), 9.21 (d, 1H), 9.22 (s, 1H).

Example 258 1-Phenyl-3-(3-pyridazyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.25 (m, 1H), 7.48-7.58 (m, 6H), 8.55 (d, 1H), 8.60 (m, 1H), 8.78 (dd, 1H), 9.14 (dd, 1H), 9.34 (d, 1H).

Example 259 1-Phenyl-3-(4-pyridazyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.28 (m, 1H), 7.47-7.62 (m, 6H), 7.78 (dt, 1H), 8.16 (dd, 1H), 8.33 (d, 1H), 8.53 (d, 1H), 8.63-8.65 (m, 1H), 9.23 (dd, 1H), 9.62 (dd, 1H).

Example 260 3-(2-Methoxypyridin-6-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.07 (s, 3H), 6.73 (dd, 1H), 7.46-7.56 (m, 5H), 7.62-7.70 (m, 2H), 7.78 (ddd, 1H), 8.35 (dd, 1H), 8.39 (d, 1H), 8.66 (ddd, 1H), 9.21 (d, 1H).

Example 261 3-(2-Cyanophenyl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18 (t, 1H), 7.46-7.52 (m, 2H), 7.65 (dt, 1H), 7.71 (dd, 1H), 7.74-7.80 (m, 1H), 7.99 (ddd, 1H), 8.72-8.75 (m, 5H), 8.82 (dd, 1H).

Example 262 3-(2-Fluoropyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.16 (t, 1H), 7.24-7.27 (m, 2H), 7.48-7.57 (m, 5H), 8.19-8.23 (m, 2H), 8.69-8.76 (m, 3H).

Example 263 3-(2-Fluoropyridin-3-yl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.19 (t, 1H), 7.26-7.30 (m, 1H), 7.47-7.52 (m, 1H), 7.94 (ddd, 1H), 8.17 (ddd, 1H), 8.70-8.80 (m, 7H).

Example 264 3-(2-Cyanopyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.17 (t, 1H), 7.47-7.56 (m, 6H), 8.14 (dd, 1H), 8.70 (dd, 1H), 8.72 (d, 1H), 8.80 (d, 1H), 8.85 (d, 1H).

Example 265 3-(2-Cyanopyridin-3-yl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20 (t, 1H), 7.52 (ddd, 1H), 7.58 (dd, 1H), 7.97 (ddd, 1H), 8.11 (dd, 1H), 8.71-8.76 (m, 4H), 8.78 (d, 1H), 8.81 (dd, 1H), 8.66 (d, 1H).

Example 266 3-(2-Cyanophenyl)-1-(3-nitrophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20 (t, 1H), 7.49 (ddd, 1H), 7.65-7.80 (m, 5H), 7.98 (ddd, 1H), 8.36 (ddd, 1H), 8.46 (t, 1H), 8.73-8.77 (m, 4H).

Example 267 1-Phenyl-5-(2-pyridyl)-3-(thiazol-4-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24-7.28 (m, 1H), 7.48-7.58 (m, 5H), 7.64 (td, 1H), 7.79 (dt, 1H), 8.23 (d, 1H), 8.58 (d, 1H), 8.64-8.66 (m, 2H), 8.85 (d, 1H).

Example 268 3-(3-Oxo-1-cyclohexen-1-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.09-2.16 (m, 2H), 2.48-2.51 (m, 2H), 2.87-2.91 (m, 2H), 6.53 (t, 1H), 7.22 (ddd, 1H), 7.43-7.57 (m, 6H), 7.75 (dt, 1H), 8.17 (d, 1H), 8.25 (d, 1H), 8.60 (ddd, 1H).

Example 269 3-(5,6-Dihydro-1,4-dioxin-2-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.18-4.20 (m, 2H), 4.30-4.32 (m, 2H), 7.19 (ddd, 1H), 7.41-7.54 (m, 5H), 7.63 (td, 1H), 7.73 (dt, 1H), 8.02 (s, 1H), 8.28 (d, 1H), 8.58 (ddd, 1H).

Example 270 3-(2-Nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22 (ddd, 1H), 7.40-7.61 (m, 8H), 7.68 (ddd, 1H), 7.74 (ddd, 1H), 8.06 (dd, 1H), 8.22-8.25 (m, 2H), 8.60-8.63 (m, 1H).

Example 271 3-(4-Biphenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20-7.25 (m, 1H), 7.33-7.40 (m, 1H), 7.42-7.57 (m, 6H), 7.60-7.79 (m, 7H), 7.90-7.95 (m, 2H), 8.25 (d, 1H), 8.30 (d, 1H), 8.60-8.64 (m, 1H).

Example 272 3-(2-Acetylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.59 (s, 3H), 7.16-7.21 (m, 1H), 7.40-7.60 (m, 8H), 7.63-7.67 (m, 1H), 7.68-7.75 (m, 1H), 8.16 (d, 1H), 8.22 (d, 1H), 8.57-8.61 (m, 1H).

Example 273 3-(3-Nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.46-7.64 (m, 7H), 7.76 (ddd, 1H), 8.20-8.26 (m, 2H), 8.27 (d, 1H), 8.37 (d, 1H), 8.61-8.65 (m, 1H), 8.69 (dd, 1H).

Example 274 1-Phenyl-3-(4-pyridyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.46-7.62 (m, 6H), 7.73-7.81 (m, 3H), 8.28 (d, 1H), 8.39 (d, 1H), 8.61-8.64 (m, 1H), 8.66 (dd, 2H).

Example 275 3-(4-Nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.26 (m, 1H), 7.47-7.58 (m, 5H), 7.60 (ddd, 1H), 7.76 (ddd, 1H), 8.01-8.06 (m, 2H), 8.26-8.31 (m, 3H), 8.38 (d, 1H), 8.61-8.65 (m, 1H).

Example 276 1-[3-(Benzyloxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 5.10 (s, 2H), 7.05-7.14 (m, 2H), 7.17 (dd, 1H), 7.21 (ddd, 1H), 7.30-7.48 (m, 7H), 7.60 (ddd, 1H), 7.64 (ddd, 1H), 7.71-7.81 (m, 3H), 8.29-8.32 (m, 2H), 8.58-8.61 (m, 1H).

Example 277 1-(3-Acetylphenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.66 (s, 3H), 7.24 (ddd, 1H), 7.48 (ddd, 1H), 7.61-7.69 (m, 3H), 7.74-7.81 (m, 4H), 8.07 (ddd, 1H) 8.11 (ddd, 1H), 8.32 (d, 1H), 8.34 (d, 1H), 8.59-8.62 (m, 1H).

Example 278 3-[4-(tert-Butylaminosulfonyl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.26 (s, 9H), 4.46 (s, 1H), 7.24 (ddd, 1H), 7.46-7.58 (m, 5H), 7.58-7.61 (m, 1H), 7.76 (ddd, 1H), 7.90-7.99 (m, 4H), 8.26 (d, 1H), 8.33 (d, 1H), 8.61-8.64 (m, 1H).

Example 279 3-(1-Naphthyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21 (dd, 1H), 7.42-7.50 (m, 3H), 7.51-7.61 (m, 3H), 7.71 (td, 1H), 7.81-7.85 (m, 1H), 7.87-7.90 (m, 2H), 7.96-7.99 (m, 1H), 8.20 (d, 1H), 8.37 (d, 1H), 8.60 (d, 1H), 8.67 (d, 1H), 8.84 (d, 1H).

ESI-Mass; 376 [M⁺+H]

Example 280 3-(1-Naphthyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.19 (ddd, 1H), 7.38-7.59 (m, 9H), 7.71 (td, 2H), 7.84-7.89 (m, 3H), 8.18 (d, 1H), 8.39 (d, 1H), 8.59 (ddd, 1H).

ESI-Mass; 375 [M⁺+H]

Example 281 3-(8-Quinolinyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18-7.23 (m, 1H), 7.38-7.56 (m, 3H), 7.84-7.58 (m, 3H), 7.86-8.01 (m, 3H), 8.19-8.23 (m, 1H), 8.30-8.36 (m, 2H), 8.56-8.62 (m, 1H), 8.66-8.70 (m, 1H), 8.91-8.97 (m, 1H).

ESI-Mass; 377 [M⁺+H]

Example 282 3-(8-Quinolinyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18 (dd, 1H), 7.39-7.54 (m, 4H), 7.55-7.65 (m, 3H), 7.66-7.73 (m, 2H), 7.85 (dd, 1H), 7.98 (dd, 1H), 8.2 (dd, 1H), 8.34 (d, 1H), 8.36 (d, 1H), 8.58 (d, 1H), 8.94 (dd, 1H).

ESI-Mass; 376 [M⁺+H]

Example 283 3-(2-Naphthyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.28 (m, 1H), 7.48-7.53 (m, 3H), 7.64 (dt, 1H), 7.78 (td, 1H), 7.85-7.91 (m, 4H), 7.97 (ddd, 1H), 8.25 (d, 1H), 8.35 (s, 1H), 8.38 (d, 1H), 8.64 (ddd, 1H), 8.72 (d, 1H), 8.81 (d, 1H).

ESI-Mass; 376 [M⁺+H]

Example 284 3-(2-Naphthyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21 (dd, 1H), 7.44-7.50 (m, 4H), 7.53-7.56 (m, 3H), 7.62 (dd, 1H), 7.72-7.77 (m, 1H), 7.83-7.91 (m, 2H), 7.92 (td, 2H), 8.25 (d, 1H), 8.37 (d, 1H), 8.39 (brs, 1H), 8.61-8.64 (m, 1H).

Example 285 3-(2-Pyrrolidinopyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.00-2.04 (m, 4H), 3.50 (t, 4H), 7.74-7.78 (m, 9H), 8.03 (d, 1H), 8.06 (d, 1H), 8.21 (d, 1H), 8.57-8.60 (m, 2H).

ESI-Mass; 396 [M⁺+H]

Example 286 3-(2-Formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21-7.29 (m, 2H), 7.46-7.57 (m, 6H), 7.73 (d, 1H), 7.75 (td, 1H), 8.22 (d, 1H), 8.31 (d, 1H), 8.60-8.62 (m, 1H), 10.00 (s, 1H).

ESI-Mass; 359 [M⁺+H]

Example 287 3-(2-Chloropyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.24 (ddd, 1H), 7.37 (d, 1H), 7.44-7.51 (m, 3H), 7.53-7.60 (m, 2H), 7.64-7.70 (m, 1H), 7.76 (td, 1H), 8.24 (d, 1H), 8.26 (t, 1H), 8.31 (d, 1H), 8.62 (ddd, 1H), 8.75 (d, 1H).

ESI-Mass; 360 [M⁺+H]

Example 288 3-(2-Fluoropyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.99 (dd, 1H), 7.24 (dd, 1H), 7.47-7.57 (m, 5H), 7.59 (dd, 1H), 7.76 (tdd, 1H), 8.25 (dd, 1H), 8.30 (dd, 1H), 8.37 (td, 1H), 8.57-8.58 (m, 1H), 8.63 (dt, 1H).

Example 289 3-(2-Ethylthiopyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.39 (t, 3H), 3.20 (q, 2H), 7.20-7.24 (m, 2H), 7.44-7.59 (m, 6H), 7.75 (td, 1H), 8.08 (dd, 1H), 8.23 (d, 1H), 8.26 (d, 1H), 8.61 (ddd, 1H), 8.78 (d, 1H).

ESI-Mass; 386 [M⁺+H]

Example 290 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-naphthyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22 (ddd, 1H), 7.47 (td, 1H), 7.53-7.60 (m, 2H), 7.62-7.67 (m, 3H), 7.76 (td, 1H), 7.81 (td, 2H), 7.88-7.94 (m, 2H), 7.98 (d, 1H), 7.99 (s, 1H), 8.34 (d, 1H), 8.43 (d, 1H), 8.60 (ddd, 1H).

ESI-Mass; 400 [M⁺+H]

Example 291 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(1-naphthyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.21 (ddd, 1H), 7.45 (td, 1H), 7.54-7.65 (m, 6H), 7.65-7.83 (m, 4H), 7.93-8.02 (m, 2H), 8.30 (d, 1H), 8.46 (d, 1H), 8.57 (ddd, 1H).

ESI-Mass; 400 [M⁺+H]

Example 292 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(8-quinolinyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.18 (ddd, 1H), 7.43 (td, 1H), 7.48 (dd, 1H), 7.61 (td, 1H), 7.63 (d, 1H), 7.69 (dd, 1H), 7.72 (td, 1H), 7.78 (dd, 1H), 7.86 (dd, 1H), 7.92 (dd, 1H), 7.98 (dd, 1H), 8.26 (dd, 1H), 8.36 (d, 1H), 8.43 (d, 1H), 8.55-8.57 (m, 1H), 8.95 (dd, 1H).

Example 293 3-[(1-Benzenesulfonyl)indol-2-yl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.95 (d, 1H), 7.21 (ddd, 1H), 7.22 (ddd, 1H), 7.26-7.33 (m, 3H), 7.42 (dt, 1H), 7.44-7.49 (m, 2H), 7.50-7.56 (m, 4H), 7.60 (dt, 1H), 7.71-7.77 (m, 3H), 8.07 (dd, 1H), 8.20 (d, 1H), 8.34 (d, 1H), 8.60 (ddd, 1H).

Example 294 3-(2-Cyanopyridin-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.20-7.28 (m, 1H), 7.51 (dd, 1H), 7.58 (dd, 1H), 7.64 (d, 1H), 7.79 (td, 1H), 7.94-7.97 (m, 1H), 8.18 (dd, 1H), 8.35 (d, 1H), 8.44 (d, 1H), 8.60-8.63 (m, 1H), 8.72 (dd, 1H), 8.74 (dd, 1H), 8.81 (d, 1H).

ESI-Mass; 352 [M⁺+H]

Example 295 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(pyrrol-3-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.46-6.50 (m, 1H), 6.79 (dd, 1H), 7.21 (dd, 1H), 7.29-7.32 (m, 1H), 7.45 (t, 1H), 7.60-7.66 (m, 2H), 7.72-7.80 (m, 3H), 8.23 (d, 1H), 8.47 (d, 1H), 8.61 (d, 1H), 8.72 (brs, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 162.

Example 296 3-(2-Cyanophenyl)-5-(3-nitropyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.43-7.54 (m, 7H), 7.62-7.67 (m, 2H), 7.73-7.76 (m, 2H), 8.03 (d, 1H), 8.24 (dd, 1H), 8.82 (dd, 1H).

Example 297 3-(2-Cyanophenyl)-5-[2-(2,6-dimethylpyrrol-1-yl)pyridin-6-yl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.17 (s, 6H), 5.91 (s, 2H), 7.12 (dd, 1H), 7.45-7.56 (m, 6H), 7.61 (dd, 1H), 7.65 (dd, 1H), 7.78-7.80 (m, 1H), 7.88 (t, 1H), 8.35 (d, 1H), 8.40 (d, 1H).

Example 298 5-(2-Aminopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.44 (brs, 2H), 6.43 (dd, 1H), 6.96 (d, 1H), 7.42-7.54 (m, 7H), 7.63 (dt, 1H), 7.76-7.78 (m, 1H), 8.24 (d, 1H), 8.26 (d, 1H).

Example 299 3-(2-Cyanophenyl)-5-(5-nitropyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.47-7.59 (m, 6H), 7.67 (dt, 1H), 7.75-7.82 (m, 3H), 8.35 (d, 1H), 8.52 (dd, 1H), 8.55 (d, 1H), 9.39 (dd, 1H).

Example 300 5-(2-Bromopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.39 (dd, 1H), 7.45-7.67 (m, 9H), 7.78-7.80 (m, 2H), 8.23 (d, 1H), 8.34 (d, 1H).

Example 301 3-(2-Cyanophenyl)-1-phenyl-5-(5-trifluoromethylpyridin-2-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.46-7.58 (m, 6H), 7.63-7.68 (m, 1H), 7.72 (d, 1H), 7.78-7.81 (m, 1H), 7.97 (ddd, 1H), 8.33 (d, 1H), 8.44 (d, 1H), 8.83-8.84 (m, 1H).

Example 302 3-(2-Cyanophenyl)-5-(2-morpholinopyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.55 (t, 2H), 3.83 (t, 2H), 6.57 (d, 1H), 6.97 (d, 1H), 7.43-7.66 (m, 8H), 7.77-7.80 (m, 2H), 8.18 (d, 1H), 8.31 (d, 1H).

Example 303 3-(2-Cyanophenyl)-5-(2-methoxycarbonylpyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.99 (s, 3H), 7.44-7.57 (m, 6H), 7.65 (dt, 1H), 7.78-7.81 (m, 3H), 7.91 (t, 1H), 8.04 (dd, 1H), 8.30 (d, 1H), 8.37 (d, 1H).

The following compound was synthesized by the method similar to, or in accordance with, the method for Example 164.

Example 304 5-[4-(tert-Butylaminosulfonyl)phenyl]-3-(2-cyanophenyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.25 (s, 9H), 4.72 (br s, 1H), 7.47-7.54 (m, 2H), 7.60-7.71 (m, 4H), 7.73-7.83 (m, 2H), 7.93-8.02 (m, 4H), 8.73 (dd, 1H), 8.79 (d, 1H).

The following compound was synthesized by the method similar to, or in accordance with, the method for Example 167.

Example 305 3-(2-Cyanophenyl)-4-methyl-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.12 (s, 3H), 7.28 (ddd, 1H), 7.38-7.52 (m, 8H), 7.59 (s, 1H), 7.66 (ddd, 1H), 7.75-7.80 (m, 2H), 8.66-8.70 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 168.

Example 306 1-Phenyl-3-[N—(N′-phenylthioureylenyl)]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.19-7.24 (m, 1H), 7.26-7.36 (m, 3H), 7.37-7.54 (m, 7H), 7.70 (d, 1H), 7.78 (ddd, 1H), 7.92 (br s, 1H), 8.09 (d, 1H), 8.55-8.59 (m, 1H), 9.33 (br s, 1H), 10.03 (d, 1H).

Example 307 3-(2-Cyanophenyl)-1-phenyl-5-[N—(N′-phenylureylenyl)]-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 6.95 (dd, 1H), 7.25 (dd, 1H), 7.41-7.61 (m, 8H), 7.65 (d, 1H), 7.71 (d, 1H), 7.77 (dd, 1H), 7.92 (d, 1H), 8.03 (d, 1H), 8.56-8.66 (m, 1H), 9.02-9.10 (m, 1H).

Example 308 3-{4-[N—(N′-butylureylenyl)phenyl]}-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 0.90 (t, 3H), 1.32 (tt, 2H), 1.42 (tt, 2H), 3.09 (dt, 2H), 6.16 (br t, 1H), 7.29 (dd, 1H), 7.44 (d, 2H), 7.47-7.54 (m, 1H), 7.54-7.60 (m, 4H), 7.69 (d, 2H), 7.82 (ddd, 1H), 8.02 (d, 1H), 8.35 (d, 1H), 8.39 (d, 1H), 8.53 (br s, 1H), 8.58-8.61 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 169.

Example 309 3-(2-Cyanophenyl)-1-phenyl-5-(2-pyridincarbonyl)amino-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.42-7.54 (m, 7H), 7.63 (ddd, 1H), 7.74-7.79 (m, 3H), 7.92 (ddd, 1H), 8.20 (d, 1H), 8.58 (d, 1H), 8.59-8.62 (m, 1H), 9.80 (br s, 1H).

Example 310 1-Phenyl-3-[2-(1-pyrrolidino)acetylamino]-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.78-1.86 (m, 4H), 2.66-2.74 (m, 4H), 3.36 (s, 2H), 7.20 (ddd, 1H), 7.44-7.56 (m, 5H), 7.66 (d, 1H), 7.75 (ddd, 1H), 8.07 (d, 1H), 8.54-8.58 (m, 1H), 9.12 (d, 1H), 10.15 (br s, 1H).

Example 311 1-Phenyl-3-{3-[1-(4-phenylpiperadino)]propionylamino}-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.66 (t, 2H), 2.69-2.76 (m, 4H), 2.80 (t, 2H), 3.30-3.36 (m, 4H), 6.81-6.86 (m, 1H), 6.90-6.97 (m, 2H), 7.18 (ddd, 1H), 7.22-7.29 (m, 2H), 7.40-7.53 (m, 5H), 7.62-7.67 (m, 1H), 7.73 (ddd, 1H), 8.03 (d, 1H), 8.53-8.57 (m, 1H), 9.11 (d, 1H), 10.56 (br s, 1H).

Example 312 3-(3-pyrrolidinopropionyl)amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.80-1.88 (m, 4H), 2.58-2.67 (m, 6H), 2.86 (t, 2H), 7.17 (ddd, 1H), 7.42-7.54 (m, 5H), 7.65 (d, 1H), 7.73 (ddd, 1H), 8.03 (d, 1H), 8.53-8.57 (m, 1H), 9.11 (d, 1H), 10.91 (br s, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 170.

Example 313 5-Benzylamino-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.15 (s, 2H), 6.70 (d, 1H), 7.30-7.36 (m, 1H), 7.36-7.43 (m, 8H), 7.43-7.49 (m, 3H), 7.59 (ddd, 1H), 7.72-7.77 (m, 2H).

Example 314 3-Dibenzylamino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.52 (s, 4H), 7.12 (ddd, 1H), 7.16-7.33 (m, 10H), 7.37-7.54 (m, 7H), 7.63 (ddd, 1H), 7.80 (d, 1H), 8.50-8.54 (m, 1H).

Example 315 3-(2-Cyanophenyl)-1-(3-hydroxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

52 mg of 1-[3-(benzyloxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one and 20 mg of 5% palladium-carbon were added to 3 ml of methanol, followed by stirring at room temperature in hydrogen atmosphere overnight. After the resulting insoluble matters were filtered off, the filtrate was evaporated. The residue was purified by silica gel chromatography (ethyl acetate/hexane system), to give 26 mg the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.76 (dd, 1H), 6.87-6.92 (m, 1H), 6.93 (dd, 1H), 7.22-7.30 (m, 2H), 7.44 (ddd, 1H), 7.60-7.67 (m, 2H), 7.73-7.80 (m, 3H), 8.25 (d, 1H), 8.32 (d, 1H), 8.33 (br s, 1H), 8.59-8.63 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 171.

Example 316 1-Benzyloxymethyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.76 (s, 2H), 5.63 (s, 2H), 7.22 (ddd, 1H), 7.26-7.42 (m, 5H), 7.47 (ddd, 1H), 7.57 (d, 1H), 7.64-7.80 (m, 4H), 8.23 (d, 1H), 8.34 (d, 1H), 8.60-8.64 (m, 1H).

Example 317 3-(2-Cyanophenyl)-1-cyclopentylmethyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.32-1.42 (m, 2H), 1.55-1.64 (m, 2H), 1.65-1.75 (m, 2H), 1.76-1.86 (m, 2H), 2.53 (ddd, 1H), 4.10 (d, 2H), 7.21 (ddd, 1H), 7.45 (ddd, 1H), 7.58 (d, 1H), 7.64 (ddd, 1H), 7.71-7.79 (m, 3H), 8.16 (d, 1H), 8.28 (d, 1H), 8.59-8.63 (m, 1H).

Example 318 1-[1-(tert-butoxycarbonyl)piperidin-4-yl]methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.22-1.35 (m, 2H), 1.45 (s, 9H), 1.68-1.78 (m, 2H), 2.14-2.27 (m, 1H), 2.61-2.76 (m, 2H), 3.90-4.25 (m, 4H), 7.22 (ddd, 1H), 7.46 (ddd, 1H), 7.58 (ddd, 1H), 7.65 (ddd, 1H), 7.73 (ddd, 2H), 7.78 (dd, 1H), 8.17 (d, 1H), 8.21 (d, 1H), 8.59-8.63 (m, 1H).

Example 319 1-[1-(Benzyloxycarbonyl)piperidin-4-yl]methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.25-1.38 (m, 2H), 1.68-1.81 (m, 2H), 2.17-2.30 (m, 1H), 2.70-2.86 (m, 2H), 3.92-4.08 (m, 2H), 4.15-4.32 (m, 2H), 5.12 (s, 2H), 7.22 (ddd, 1H), 7.28-7.38 (m, 5H), 7.46 (ddd, 1H), 7.57 (d, 1H), 7.65 (ddd, 1H), 7.69-7.79 (m, 3H), 8.17 (d, 1H), 8.20 (d, 1H), 8.59-8.62 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 174.

Example 320 3-(Pyrrol-1-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.33 (t, 2H), 7.22 (ddd, 1H), 7.36 (t, 2H), 7.45-7.57 (m, 6H), 7.74 (td, 1H), 8.10 (d, 1H), 8.12 (d, 1H), 8.61 (ddd, 1H).

ESI-Mass; 314 [M⁺+H]

Example 321 3-(2-Cyanophenylamino)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.06 (ddd, 1H), 7.21 (ddd, 1H), 7.41-7.65 (m, 9H), 7.71 (td, 1H), 7.76 (d, 1H), 7.88 (d, 1H), 8.60 (ddd, 1H).

ESI-Mass; 365 [M⁺+H]

Example 322 3-(2-Pyridylamino)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.80-6.86 (m, 2H), 7.20 (dd, 1H), 7.44-7.58 (m, 6H), 7.70 (d, 1H), 7.77 (td, 1H), 7.87 (d, 1H), 7.96 (s, 1H), 8.37 (d, 1H), 8.59 (d, 1H), 9.29 (d, 1H).

ESI-Mass; 341 [M⁺+H]

Example 323 3-(1-Isoguinolylamino)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.15-7.24 (m, 3H), 7.46-7.59 (m, 5H), 7.66 (t, 1H), 7.77 (d, 2H), 7.80 (td, 1H), 7.97 (d, 1H), 8.10 (d, 1H), 8.25 (d, 1H), 8.61 (d, 1H), 9.11 (s, 1H), 9.60 (d, 1H).

ESI-Mass; 391 [M⁺+H]

Example 324 3-(1-Indazolyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.52 (dt, 1H), 7.06 (ddd, 1H), 7.22 (ddd, 1H), 7.31 (td, 1H), 7.36 (ddd, 1H), 7.43-7.57 (m, 7H), 7.75 (dt, 1H), 8.03 (s, 1H), 8.09 (d, 1H), 8.50 (dd, 1H).

ESI-Mass; 365 [M⁺+H]

Example 325 3-(9-Carbazolyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.29 (m, 4H), 7.35-7.63 (m, 9H), 7.52-7.57 (m, 1H), 8.12 (dd, 2H), 8.43 (dd, 1H), 8.46 (dd, 1H), 8.61 (ddd, 1H).

Example 326 3-(Indol-1-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.68 (d, 1H), 7.17 (td, 1H), 7.20-7.26 (m, 2H), 7.47-7.55 (m, 7H), 7.62 (d, 1H), 7.66 (d, 1H), 7.74 (td, 1H), 8.27 (d, 1H), 8.34 (d, 1H), 8.61 (ddd, 1H).

ESI-Mass; 364 [M⁺+H]

Example 327 3-(2-Methyl-5-phenylpyrrol-1-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

25 mg of 3-amino-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 10 ml of toluene. To the mixture were added 20 mg of 1-phenyl-1,4-pentandione and 0.2 mg of p-toluenesulfonate (hydrate), followed by heating under reflux for 1 hour. After cooling to room temperature, the reaction mixture was poured into a saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 12 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.26 (s, 3H), 6.10 (d, 1H), 6.34 (d, 1H), 7.21 (tt, 1H), 7.17 (ddd, 1H), 7.21-7.27 (m, 2H), 7.28-7.32 (m, 3H), 7.39-7.54 (m, 5H), 7.66 (td, 1H), 7.83 (d, 1H), 8.31 (d, 1H), 8.53 (ddd, 1H).

The following compounds were synthesized by the method similar to, or in accordance with, the method for Example 327.

Example 328 3-(2,5-Dimethylpyrrol-1-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.16 (s, 6H), 5.92 (s, 2H), 7.22 (ddd, 1H), 7.56-7.43 (m, 6H), 7.75 (td, 1H), 8.07 (d, 1H), 8.37 (d, 1H), 8.60 (ddd, 1H).

Example 329 3-(2-Cyanophenyl)-1-(piperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

The titled compound (382 mg) was obtained by catalytically hydrogenating 590 mg of 1-[1-(benzyloxycarbonyl)piperidin-4-yl]methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one using in a conventional manner using 10% palladium-carbon.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.22-1.34 (m, 2H), 1.62-1.77 (m, 2H), 2.08-2.20 (m, 1H), 2.55-2.63 (m, 2H), 3.05-3.13 (m, 2H), 4.00 (d, 2H), 7.21 (ddd, 1H), 7.45 (ddd, 1H), 7.58 (ddd, 1H), 7.64 (ddd, 1H), 7.70-7.79 (m, 3H), 8.17 (d, 1H), 8.21 (d, 1H), 8.59-8.63 (m, 1H).

The following compound was synthesized by the method similar to, or in accordance with, the method for Example 329.

Example 330 3-(2-Cyanophenyl)-1-[3-(4-piperidyloxy)]phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.60-1.73 (m, 2H), 1.98-2.07 (m, 2H), 2.69-2.77 (m, 2H), 3.08-3.17 (m, 2H), 4.39-4.46 (m, 1H), 6.98-7.02 (m, 1H), 7.04-7.09 (m, 2H), 7.21 (ddd, 1H), 7.38-7.48 (m, 2H), 7.58-7.67 (m, 2H), 7.72-7.81 (m, 3H), 8.29-8.32 (m, 2H), 8.58-8.61 (m, 1H).

Example 331 1-(1-Benzoylpiperidin-4-yl)methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

30 mg of 3-(2-cyanophenyl)-1-(piperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 2 ml of chloroform. Under ice-cooling, 0.04 ml of triethylamine and 19 mg of benzoyl chloride were added thereto, followed by stirring at room temperature for 2 hours. The reaction solution was diluted with chloroform, and washed with a saturated aqueous solution of sodium hydrogencarbonate and brine. The organic layer was dried over magnesium sulfate, and then evaporated and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 25 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.22-1.52 (m, 2H), 1.65-1.78 (m, 1H), 1.80-1.98 (m, 1H), 2.28-2.41 (m, 1H), 2.70-2.86 (m, 1H), 2.88-3.06 (m, 1H), 3.70-3.88 (m, 1H), 3.90-4.23 (m, 2H), 4.65-4.87 (m, 1H), 7.22 (dd, 1H), 7.36-7.42 (m, 5H), 7.46 (dd, 1H), 7.55-7.60 (m, 1H), 7.62-7.72 (m, 2H), 7.72-7.79 (m, 2H), 8.16 (d, 1H), 8.22 (d, 1H), 8.59-8.63 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 331.

Example 332 1-(1-Acetylpiperidin-4-yl)methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.22-1.38 (m, 2H), 1.75-1.86 (m, 2H), 2.08 (s, 3H), 2.20-2.35 (m, 1H), 2.50-2.60 (m, 1H), 2.98-3.08 (m, 1H), 3.79-3.87 (m, 1H), 3.95 (dd, 1H), 4.05-4.15 (m, 1H), 4.61-4.70 (m, 1H), 7.23 (ddd, 1H), 7.47 (ddd, 1H), 7.58 (d, 1H), 7.63-7.71 (m, 2H), 7.72-7.80 (m, 2H), 8.17 (d, 1H), 8.21 (d, 1H), 8.59-8.63 (m, 1H).

Example 333 1-[3-(N-acetylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.77-2.02 (m, 4H), 2.12 (s, 3H), 3.37-3.45 (m, 1H), 3.59-3.72 (m, 2H), 3.75-3.83 (m, 1H), 4.57-4.62 (m, 1H), 7.01 (ddd, 1H), 7.07-7.12 (m, 2H), 7.22 (ddd, 1H), 7.43 (dd, 1H), 7.46 (ddd, 1H), 7.61 (ddd, 1H), 7.64 (ddd, 1H), 7.72-7.80 (m, 3H), 8.29 (d, 1H), 8.31 (d, 1H), 8.58-8.62 (m, 1H).

Example 334 1-[3-(N-benzoylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.75-2.13 (m, 4H), 3.30-3.47 (m, 1H), 3.58-3.72 (m, 1H), 3.75-3.87 (m, 1H), 3.88-4.03 (m, 1H), 4.56-4.68 (m, 1H), 6.99-7.03 (m, 1H), 7.07-7.13 (m, 2H), 7.20-7.25 (m, 1H), 7.38-7.49 (m, 7H), 7.59-7.67 (m, 2H), 7.72-7.80 (m, 3H), 8.28 (d, 1H), 8.31 (d, 1H), 8.58-8.62 (m, 1H).

Example 335 1-[1-(Benzenesulfonyl)piperidin-4-yl]methyl-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

30 mg of 3-(2-cyanophenyl)-1-(piperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 2 ml of chloroform. Under ice-cooling, 0.04 ml of triethylamine and 23 mg of benzenesulfonyl chloride were added thereto, followed by stirring at room temperature for 2 hours. The reaction solution was diluted with chloroform, and washed with a saturated aqueous solution of sodium hydrogen carbonate and brine. The organic layer was dried over magnesium sulfate, and then evaporated and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 30 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.41-1.60 (m, 2H), 1.77-1.85 (m, 2H), 1.95-2.06 (m, 1H), 2.20-2.31 (m, 2H), 3.80-3.88 (m, 2H), 3.98 (d, 2H), 7.22 (dd, 1H), 7.45 (ddd, 1H), 7.48-7.68 (m, 6H), 7.70-7.79 (m, 4H), 8.15 (d, 1H), 8.17 (d, 1H), 8.59-8.63 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 335.

Example 336 3-(2-Cyanophenyl)-1-[1-(methanesulfonyl)piperidin-4-yl]methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.43-1.56 (m, 2H), 1.83-1.92 (m, 2H), 2.17-2.30 (m, 1H), 2.63-2.72 (m, 2H), 2.77 (s, 3H), 3.80-3.88 (m, 2H), 4.03 (d, 2H), 7.20-7.26 (m, 1H), 7.44-7.51 (m, 1H), 7.55-7.61 (m, 1H), 7.63-7.72 (m, 2H), 7.73-7.82 (m, 2H), 8.17 (d, 1H), 8.21 (d, 1H), 8.59-8.64 (m, 1H).

Example 337 1-{3-[1-(Benzenesulfonyl)piperidin-4-yl-oxy]phenyl}-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.90-2.10 (m, 4H), 3.10-3.23 (m, 4H), 4.38-4.45 (m, 1H), 6.87-6.92 (m, 1H), 6.98 (dd, 1H), 7.05 (ddd, 1H), 7.22 (ddd, 1H), 7.38 (dd, 1H), 7.46 (ddd, 1H), 7.52-7.66 (m, 5H), 7.72-7.80 (m, 5H), 8.25-8.28 (m, 2H), 8.57-8.60 (m, 1H).

Example 338 3-(2-Cyanophenyl)-1-{3-[1-(methanesulfonyl)piperidin-4-yl-oxy]phenyl}-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.98-2.10 (m, 4H), 2.81 (s, 3H), 3.30-3.41 (m, 4H), 4.56-4.62 (m, 1H), 6.98-7.02 (m, 1H), 7.08-7.13 (m, 2H), 7.23 (ddd, 1H), 7.44 (dd, 1H), 7.47 (ddd, 1H), 7.61 (ddd, 1H), 7.65 (ddd, 1H), 7.73-7.80 (m, 3H), 8.28 (d, 1H), 8.32 (d, 1H), 8.59-8.62 (m, 1H).

Example 339 3-(2-Cyanophenyl)-1-(1-benzylpiperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

80 mg of 3-(2-cyanophenyl)-1-(piperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 2 ml of chloroform. To the mixture were added 73 mg of benzaldehyde, 97 mg of triacetoxy sodium borohydride and 41 mg of acetic acid, followed by stirring at room temperature for 4 hours. The reaction solution was diluted with chloroform, and washed with a saturated aqueous solution of sodium hydrogen carbonate and brine. The organic layer was dried over magnesium sulfate. Then the mixture was evaporated, and the residue was purified by NH silica gel chromatography (hexane/ethyl acetate system), to give 80 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.44 (ddd, 2H), 1.68-1.76 (m, 2H), 1.92-2.06 (m, 3H), 2.37-2.93 (m, 2H), 3.48 (s, 2H), 4.01 (d, 2H), 7.18-7.25 (m, 2H), 7.27-7.32 (m, 4H), 7.45 (ddd, 1H), 7.56 (d, 1H), 7.64 (ddd, 1H), 7.70-7.78 (m, 3H), 8.16 (d, 1H), 8.19 (d, 1H), 8.58-8.61 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 339.

Example 340 3-(2-Cyanophenyl)-1-(1-methylpiperidin-4-yl)methyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.38-1.50 (m, 2H), 1.65-1.80 (m, 2H), 1.88-2.05 (m, 3H), 2.25 (s, 3H), 2.82-2.92 (m, 2H), 4.01 (d, 2H), 7.19-7.24 (m, 1H), 7.43-7.49 (m, 1H), 7.56-7.60 (m, 1H), 7.62-7.68 (m, 1H), 7.70-7.80 (m, 3H), 8.17 (d, 1H), 8.20 (d, 1H), 8.59-8.63 (m, 1H).

Example 341 1-[3-(N-methylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.80-1.93 (m, 2H), 1.97-2.08 (m, 2H), 2.23-2.37 (m, 5H), 2.60-2.73 (m, 2H), 4.33-4.42 (m, 1H), 6.97-7.02 (m, 1H), 7.04-7.10 (m, 2H), 7.19-7.24 (m, 1H), 7.38-7.49 (m, 2H), 7.58-7.68 (m, 2H), 7.72-7.82 (m, 3H), 8.28-8.33 (m, 2H), 8.58-8.62 (m, 1H).

Example 342 1-[3-(N-benzylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.78-1.88 (m, 2H), 1.97-2.06 (m, 2H), 2.26-2.35 (m, 2H), 2.58-2.76 (m, 2H), 4.33-4.41 (m, 1H), 6.97-7.01 (m, 1H), 7.04-7.08 (m, 2H), 7.21 (ddd, 1H), 7.24-7.28 (m, 1H), 7.30-7.34 (m, 4H), 7.40 (dd, 1H), 7.46 (ddd, 1H), 7.60 (ddd, 1H), 7.64 (ddd, 1H), 7.72-7.80 (m, 3H), 8.30 (s, 2H), 8.58-8.61 (m, 1H).

Example 343 3-(4-Sulfamoylphenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

80 mg of 3-[4-(tert-butylaminosulfonyl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 3 ml of trifluoroacetic acid, followed by heating under reflux for 1 hour. It was left to cool to room temperature, and then the reaction mixture was diluted with ethyl acetate/tetrahydrofuran, and washed with a saturated aqueous solution of sodium hydrogen carbonate and brine. The organic layer was dried over magnesium sulfate, and then evaporated. The resulting crude crystals were washed with ethyl acetate, to give 60 mg of the title compound.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.31 (ddd, 1H), 7.49-7.61 (m, 5H), 7.82-7.90 (m, 3H), 7.97-8.02 (m, 2H), 8.03-8.07 (m, 1H), 8.48 (d, 1H), 8.54 (d, 1H), 8.59-8.62 (m, 1H).

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 181.

Example 344 3-Cyclohexylaminocarbonyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.12-2.10 (m, 10H), 3.97-4.04 (m, 1H), 7.23 (ddd, 1H), 7.43-7.58 (m, 1H), 7.49-7.59 (m, 4H), 7.74-7.77 (m, 1H), 7.79 (td, 1H), 8.55-8.56 (m, 1H), 8.57 (d, 1H), 9.18 (d, 1H), 9.64 (d, 1H).

ESI-Mass; 374 [M⁺+H]

Example 345 3-(2-Cyanophenyl)-5-(1-adamantylaminocarbonyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.77-1.56 (m, 7H), 1.97-2.15 (m, 8H), 5.63 (s, 1H), 7.42-7.54 (m, 6H), 7.63 (td, 1H), 7.74-7.78 (m, 2H), 7.88 (d, 1H), 8.12 (d, 1H).

Example 346 3-(1-Adamantylaminocarbonyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.50-1.72 (m, 12H), 1.99-2.15 (m, 3H), 7.21-7.29 (m, 1H), 7.43-7.49 (m, 2H), 7.48-7.60 (m, 4H), 7.75-7.80 (m, 1H), 8.47 (d, 1H), 8.55 (d, 1H), 8.60 (ddd, 1H).

Example 347 3-{1-[4-(2-Cyanophenyl)piperadino]carbonyl}-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.12-3.31 (m, 4H), 3.59-3.79 (m, 4H), 6.99-7.06 (m, 2H), 7.22 (dd, 1H), 7.27-7.62 (m, 8H), 7.75 (td, 1H), 8.29 (d, 1H), 8.37 (d, 1H), 8.58 (ddd, 1H).

ESI-Mass; 462 [M⁺+H]

Example 348 3-[(2-Phenylhydrazino)carbonyl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.53 (d, 1H), 6.89 (t, 1H), 6.94 (d, 2H), 7.20-7.30 (m, 3H), 7.62-7.47 (m, 5H), 7.71-7.77 (m, 1H), 7.80 (dd, 1H), 8.56-8.57 (m, 1H), 8.64 (d, 1H), 9.16 (d, 1H), 11.23 (d, 1H).

ESI-Mass; 383 [M⁺+H]

Example 349 3-Phenylaminocarbonyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.06-7.17 (m, 1H), 7.23-7.28 (m, 1H), 7.31-7.37 (m, 2H), 7.46-7.62 (m, 5H), 7.73-7.83 (m, 4H), 8.58 (ddd, 1H), 8.63 (d, 1H), 9.29 (d, 1H), 11.86 (brs, 1H).

Example 350 350A 3-(2-Chlorophenyl)-5-(4-chlorobenzenesulfinyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one 350B 3-(2-Chlorophenyl)-5-(4-chlorobenzenesulfonyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

38 mg of 3-(2-chlorophenyl)-5-(4-chlorophenylthio)-1-(3-pyridyl)-1,2-dihydropyridin-2-one was dissolved in 10 ml of dichloromethane. Under ice-cooling, 15.4 mg of m-chloroperbenzoic acid was added thereto, followed by stirring at the same temperature for 1 hour. Further, 10 mg of m-chloroperbenzoic acid was added thereto, followed by stirring for 2 hours under ice-cooling. Then, the mixture was diluted with 30 ml of ethyl acetate, and washed with an aqueous solution of 1N sodium hydroxide. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 9 mg of 3-(2-chlorophenyl)-5-(4-chlorobenzenesulfinyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one and 6 mg of 3-(2-chlorophenyl)-5-(4-chlorobenzenesulfonyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one as the title compounds.

(350A)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.27-7.33 (m, 3H), 7.36 (d, 1H) 7.40-7.44 (m, 1H), 7.48-7.57 (m, 3H), 7.63-7.67 (m, 2H), 7.87-7.92 (m, 1H), 7.97 (d, 1H), 8.70-8.76 (m, 2H).

ESI-Mass; 441 [M⁺+H]

(350B)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.30-7.37 (m, 2H), 7.44-7.52 (m, 3H), 7.56 (t, 1H), 7.58 (t, 1H), 7.34 (d, 1H), 7.84-7.88 (m, 1H), 7.89 (t, 1H), 7.92 (t, 1H), 8.24 (d, 1H), 8.71 (dd, 1H), 8.75 (dd, 1H).

ESI-Mass; 457 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 182.

Example 351 3-(2-Cyanophenyl)-5-(5-methyl-1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.45 (s, 3H), 7.05 (d, 1H), 7.34-7.43 (m, 7H), 7.57 (td, 2H), 7.62 (ddd, 1H), 7.68 (ddd, 1H), 8.18 (d, 1H), 8.27 (d, 1H).

ESI-Mass; 403 [M⁺+H]

Example 352 3-(2-Cyanophenyl)-5-(4-methyl-1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.50 (brs, 1.5H), 2.63 (brs, 1.5H), 7.02 (d, 1H), 7.14 (t, 1H), 7.30-7.40 (m, 7H), 7.52-7.58 (m, 2H), 7.65 (d, 1H), 8.18-8.23 (m, 1H), 8.24 (d, 1H).

ESI-Mass; 403 [M⁺+H]

Example 353 3-(2-Cyanophenyl)-5-(5,6-dichloro-1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.39-7.49 (m, 6H), 7.52-7.54 (m, 1H), 7.60-7.66 (m, 2H), 7.70-7.72 (m, 1H), 7.72-7.74 (m, 1H), 8.21 (d, 1H), 8.37 (d, 1H).

ESI-Mass; 457 [M⁺+H]

Example 354 3-(5,6-Dichloro-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.27 (ddd, 1H), 7.48-7.63 (m, 6H), 7.82 (td, 1H), 7.83-7.89 (m, 2H), 8.59 (d, 1H), 8.60 (dt, 1H), 9.38 (d, 1H), 12.15 (s, 1H).

ESI-Mass; 433 [M⁺+H]

Example 355 3-(6-Chloro-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.28 (m, 2H), 7.50-7.63 (m, 6H), 7.78-7.88 (m, 3H), 8.58 (dd, 1H), 8.61 (ddd, 1H), 9.40 (d, 1H).

ESI-Mass; 399 [M⁺+H]

Example 356 3-[1-(Pyridin-4-yl)benzimidazol-2-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.10-7.13 (m, 2H), 7.22-7.28 (m, 2H), 7.31-7.46 (m, 8H), 7.69 (dt, 1H), 7.77 (td, 1H), 7.91 (dt, 1H), 8.43 (d, 1H), 8.59 (ddd, 1H), 8.73-8.75 (m, 2H).

ESI-Mass; 442 [M⁺+H]

Example 357 3-[1-(1-Benzylpiperidin-4-yl)benzimidazol-2-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.01-2.20 (m, 4H), 2.56-2.66 (m, 2H), 3.02-3.07 (m, 2H), 3.58 (s, 2H), 4.09-4.18 (m, 1H), 7.21 (ddd, 1H), 7.24-7.30 (m, 3H), 7.31-7.36 (m, 2H), 7.45-7.50 (m, 4H), 7.52-7.60 (m, 3H), 7.64 (d, 1H), 7.74 (td, 1H), 7.77-7.84 (m, 2H), 8.48 (d, 1H), 8.49 (d, 1H), 8.58 (ddd, 1H).

ESI-Mass; 538 [M⁺+H]

Example 358 3-(2-Cyanophenyl)-5-(5,6-dihydro-4H-imidazo[4,5,1-i,j]quinolin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.30 (qu, 2H), 3.02 (t, 2H), 4.47 (t, 2H), 7.04 (dd, 1H), 7.20 (dd, 1H), 7.45-7.57 (m, 7H), 7.65 (td, 1H), 7.79 (dd, 1H), 7.81 (dd, 1H), 8.10 (d, 1H), 8.22 (d, 1H).

ESI-Mass; 429 [M⁺+H]

Example 359 3-(5,6-Dihydro-4H-imidazo[4,5,1-i,j]quinolin-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.20 (qu, 2H), 2.98 (t, 2H), 4.35 (t, 2H), 7.03 (d, 1H), 7.18-7.23 (m, 2H), 7.44-7.58 (m, 5H), 7.62 (d, 1H), 7.70 (d, 1H), 7.75 (dt, 1H), 8.52 (d, 1H), 8.57 (ddd, 1H) 8.70 (d, 1H).

ESI-Mass; 405 [M⁺+H]

Example 360 3-(1-Phenylbenzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.05-7.21 (m, 3H), 7.25-7.45 (m, 6H), 7.47-7.65 (m, 7H), 8.10 (d, 1H), 8.54-8.59 (m, 1H), 8.85-8.95 (m, 1H), 9.22 (d, 1H).

ESI-Mass; 441 [M⁺+H]

Example 361 3-(2-Chlorophenyl)-5-(6-chloro-1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.92 (td, 1H), 6.97-7.07 (m, 4H), 7.11-7.14 (m, 2H), 7.18-7.24 (m, 3H), 7.25-7.29 (m, 2H), 7.94 (d, 1H), 8.24 (d, 1H).

ESI-Mass; 432 [M⁺+H]

Example 362 3-(2-Cyanophenyl)-5-(1H-imidazo[4,5-c]pyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.04-7.09 (m, 1H), 7.28-7.31 (m, 1H), 7.44-7.60 (m, 5H), 7.66-7.70 (m, 2H), 7.74-7.78 (m, 1H), 7.80 (d, 1H), 7.93-7.96 (m, 1H), 8.01 (d, 1H), 8.40 (d, 1H), 8.51 (d, 1H).

ESI-Mass; 390 [M⁺+H]

Example 363 3-(6-Methyl-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.50 (s, 3H), 7.08-7.15 (m, 1H), 7.23-7.26 (m, 1H), 7.45-7.69 (m, 7H), 7.81 (td, 1H), 7.88 (d, 1H), 8.56 (d, 1H), 8.59 (ddd, 1H), 9.40 (d, 1H), 11.95-12.07 (m, 1H).

ESI-Mass; 379 [M⁺+H]

Example 364 3-(5-Methyl-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.49 (s, 3H), 7.12 (t, 1H), 7.24-7.27 (m, 1H), 7.31-7.72 (m, 7H), 7.80 (td, 1H), 7.87 (d, 1H), 8.56 (d, 1H), 8.59 (ddd, 1H), 9.40 (d, 1H), 11.94-12.07 (m, 1H).

ESI-Mass; 379 [M⁺+H]

Example 365 3-(2-Cyanophenyl)-5-[1-(1-benzylpiperidin-4-yl)benzimidazol-2-yl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.92 (dd, 2H), 2.36 (t, 2H), 2.75 (ddd, 2H), 3.05 (d, 2H), 3.62 (s, 2H), 4.58 (tt, 1H), 7.26-7.41 (m, 7H), 7.44-7.51 (m, 2H), 7.52-7.56 (m, 4H), 7.65 (td, 1H), 7.70 (dd, 1H), 7.72 (d, 1H), 7.73-7.81 (m, 3H), 8.01 (d, 1H).

ESI-Mass; 562 [M⁺+H]

Example 366 3-(2-Cyanophenyl)-5-(5-methoxy-1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.83 (s, 3H), 6.85 (dd, 1H), 7.24-7.47 (m, 8H), 7.50 (d, 2H), 7.60 (dt, 1H), 8.15 (s, 1H), 8.16 (s, 1H).

ESI-Mass; 419 [M⁺+H]

Example 367 3-(1H-Imidazo[4,5-c]pyridin-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.19-7.28 (m, 1H), 7.48-7.63 (m, 4H), 7.69-7.90 (m, 2H), 8.08 (d, 1H), 8.12 (d, 1H), 8.16-8.22 (m, 1H), 8.34 (d, 1H), 8.59 (d, 1H), 8.58-8.62 (m, 1H), 9.44 (d, 1H), 12.20 (brs, 1H).

ESI-Mass; 366 [M⁺+H]

Example 368 3-(2-Cyanophenyl)-5-[1-(pyridin-4-yl)benzimidazol-2-yl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.29-7.34 (m, 4H), 7.35-7.51 (m, 8H), 7.59 (td, 1H), 7.69 (d, 1H), 7.73 (dd, 1H), 7.82 (d, 1H), 7.84 (dt, 1H), 8.91 (dd, 2H).

ESI-Mass; 466 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 183.

Example 369 3-(2-Chlorophenyl)-5-(5-trifluoromethylbenzothiazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.32-7.37 (m, 2H), 7.47-7.58 (m, 7H), 7.61 (ddd, 1H), 7.99 (d, 1H), 8.14 (d, 1H), 8.21-8.23 (m, 1H), 8.39 (d, 1H).

ESI-Mass; 483 [M⁺+H]

Example 370 3-(5-Trifluoromethylbenzothiazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26-7.30 (m, 1H), 7.51-7.64 (m, 6H), 7.81-7.87 (m, 2H), 8.08 (d, 1H), 8.39 (s, 1H), 8.63 (d, 1H), 8.64 (t, 1H), 9.50 (d, 1H).

ESI-Mass; 450 [M⁺+H]

Example 371 3-(2-Benzothiazolyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26-7.30 (m, 1H), 7.41 (t, 1H), 7.50-7.60 (m, 6H), 7.84 (t, 1H), 7.88-7.94 (m, 1H), 7.98 (d, 1H), 8.12 (d, 1H), 8.60-8.63 (m, 2H), 9.48-9.52 (m, 1H).

ESI-Mass; 382 [M⁺+H]

Example 372 5-(2-Benzothiazolyl)-3-[2-(2-benzothiazolyl)phenyl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.09-7.14 (m, 2H), 7.25-7.33 (m, 4H), 7.37 (td, 1H), 7.42 (td, 1H), 7.46-7.52 (m, 4H), 7.80 (ddt, 2H), 7.90 (ddt, 2H), 7.95 (d, 1H), 8.12 (d, 1H), 8.30 (d, 1H).

ESI-Mass; 514 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 184.

Example 373 5-(2-Benzoxazolyl)-3-[2-(2-benzoxazolyl)phenyl]-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.42 (m, 7H), 7.44-7.73 (m, 9H), 8.26 (d, 1H), 8.34 (d, 1H), 8.48 (d, 1H).

ESI-Mass; 482 [M⁺+H]

Example 374 3-(2-Benzoxazolyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.28 (m, 1H), 7.29-7.32 (m, 2H), 7.42-7.46 (m, 2H), 7.48-7.50 (m, 3H), 7.54-7.58 (m, 1H), 7.70-7.80 (m, 3H), 8.55-8.60 (m, 2H), 9.03 (d, 1H).

ESI-Mass; 366 [M⁺+H]

Example 375 3-(2-Chlorophenyl)-5-(5-chlorobenzoxazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.27-7.35 (m, 3H), 7.41-7.51 (m, 4H), 7.52-7.57 (m, 4H), 7.67 (d, 1H), 8.25 (d, 1H), 8.49 (d, 1H).

ESI-Mass; 433 [M⁺+H]

Example 376 3-(5-Chlorobenzoxazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.26 (ddd, 1H), 7.33 (dd, 1H), 7.47-7.58 (m, 6H), 7.72 (dt, 1H), 7.79 (d, 1H), 7.79 (td, 1H), 8.55 (d, 1H), 8.62 (ddd, 1H), 9.12 (d, 1H).

ESI-Mass; 340 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 315.

Example 377 3-[1-(Piperidin-4-yl)benzimidazol-2-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.01-2.15 (m, 2H), 2.42-2.52 (m, 2H), 2.66-2.84 (m, 2H), 3.20-3.30 (m, 2H), 4.21-4.40 (m, 1H), 7.19-7.83 (m, 12H), 8.49 (d, 1H), 8.52 (d, 1H), 8.56-8.59 (m, 1H).

ESI-Mass; 448 [M⁺+H]

Example 378 378A 3-(2-Cyanophenyl)-5-[1-(piperidin-4-yl)benzimidazol-2-yl]-1-phenyl-1,2-dihydropyridin-2-one 378B 3-(2-Cyanophenyl)-5-[1-(1-methylpiperidin-4-yl]benzimidazol-2-yl]-1-phenyl-1,2-dihydropyridin-2-one (378A)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.90-2.02 (m, 2H), 2.65 (ddd, 2H), 3.01 (t, 2H), 3.28 (d, 2H), 4.69 (tt, 1H), 7.27-7.29 (m, 2H), 7.47-7.55 (m, 6H), 7.67 (td, 1H), 7.71 (d, 1H), 7.67-7.83 (m, 4H), 8.05 (d, 1H).

ESI-Mass; 472 [M⁺+H]

(378B)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.90-2.00 (m, 2H), 2.35-2.40 (m, 2H), 2.41 (s, 3H), 2.73-2.87 (m, 2H), 3.00-3.10 (m, 2H), 4.51-4.62 (m, 1H), 7.26-7.30 (m, 2H), 7.44-7.54 (m, 6H), 7.65 (td, 1H), 7.70-7.83 (m, 5H), 8.03 (d, 1H).

ESI-Mass; 486 [M⁺+H]

Example 379 379A 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(piperidin-3-yl)-1,2-dihydropyridin-2-one 379B 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(N-benzylpiperidin-3-yl)-1,2-dihydropyridin-2-one (379A)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.90-2.05 (m, 2H), 2.13-2.22 (m, 1H), 2.35-2.44 (m, 1H), 2.70 (td, 1H), 3.05-3.12 (m, 1H), 3.37 (d, 1H), 3.60-3.72 (m, 1H), 4.97-5.05 (m, 1H), 7.21 (ddd, 1H), 7.45 (td, 1H), 7.57 (d, 1H), 7.64 (td, 1H), 7.68-7.78 (m, 3H), 8.13 (d, 1H), 8.48 (d, 1H), 8.62 (ddd, 1H).

ESI-Mass; 357 [M⁺+H]

(379B)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.65-1.75 (m, 2H), 1.92-2.05 (m, 2H), 2.45-2.60 (m, 2H), 2.70-2.80 (m, 1H), 2.97 (dd, 1H), 3.55 (s, 2H), 5.15-5.20 (m, 1H), 7.22 (ddd, 1H), 7.27-7.32 (m, 1H), 7.40-7.49 (m, 4H), 7.52-7.5 (m, 2H), 7.61-7.77 (m, 5H), 8.15 (d, 1H), 8.65 (ddd, 1H).

ESI-Mass; 447 [M⁺+H]

Example 380 3-(2-Cyanophenyl)-5-(N-methylpiperidin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.24-1.39 (m, 2H), 1.73-1.85 (m, 2H), 2.04-2.14 (m, 3H), 2.16 (s, 3H), 2.63 (dd, 1H), 3.00 (d, 1H), 7.37-7.56 (m, 5H), 7.59 (td, 1H), 7.64-7.70 (m, 2H), 7.72-7.74 (m, 1H), 7.74-7.76 (m, 2H).

ESI-Mass; 370 [M⁺+H]

The following compound was synthesized by the method similar to the method for Example 7.

Example 381 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-(2-nitrotoluen-4-yl)-1,2-dihydropyridin-2-one

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 2.69 (s, 3H), 7.23-7.28 (m, 1H), 7.48 (td, 1H), 7.56-7.51 (m, 1H), 7.62 (d, 1H), 7.66 (t, 1H), 7.74-7.81 (m, 4H), 8.21 (d, 1H), 8.30 (d, 1H), 8.32 (d, 1H), 8.61 (d, 1H).

Example 382 382A 3-(4-Chlorobenzenesulfinyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one 382B 3-(4-Chlorobenzenesulfonyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

6 mg of 3-(4-chlorophenylthio)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 3 ml of dichloromethane. Under ice-cooling, 3 mg of m-chloroperbenzoic acid was added thereto, followed by stirring at the same temperature for 30 minutes. After stirring at room temperature for 5 hours, the mixture was diluted with 10 ml of ethyl acetate, and washed with a 1N aqueous solution of sodium hydroxide. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 1.2 mg of 3-(4-chlorobenzenesulfinyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and 1.5 mg of 3-(4-chlorobenzenesulfonyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one as the title compounds.

(382A)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.29 (m, 2H), 7.37-7.54 (m, 6H), 7.72 (dt, 1H), 7.79 (td, 1H), 7.87 (t, 1H), 7.89 (t, 1H), 8.44 (d, 1H), 8.57-8.60 (m, 1H), 8.69 (d, 1H).

ESI-Mass; 407 [M⁺+H]

(382B)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.30 (m, 2H), 7.37-7.40 (m, 2H), 7.42-7.52 (m, 4H), 7.67 (dt, 1H), 7.80 (td, 1H), 8.09 (t, 1H), 8.11 (t, 1H), 8.58 (d, 1H), 8.60 (ddd, 1H), 9.06 (d, 1H).

ESI-Mass; 423 [M⁺+H]

The following compounds were synthesized by the methods similar to, or in accordance with, the method for Example 382.

Example 383 383A 3-(2-Ethylsulfinylpyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one 383B 3-(2-Ethylsulfonylpyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one (383A)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.24 (t, 3H), 2.96 (dt, 1H), 3.21 (dt, 1H), 7.23-7.27 (m, 1H), 7.48-7.58 (m, 5H), 7.60 (d, 1H), 7.77 (td, 1H), 8.03 (d, 1H), 8.28 (d, 1H), 8.38 (d, 1H), 8.44 (dd, 1H), 8.64 (ddd, 1H), 9.04 (d, 1H).

ESI-Mass; 402 [M⁺+H]

(383B)

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.33 (t, 3H), 3.44 (q, 2H), 7.25-7.28 (m, 1H), 7.49-7.62 (m, 6H), 7.78 (dd, 1H), 8.14 (d, 1H), 8.31 (d, 1H), 8.41 (d, 1H), 8.51 (dd, 1H), 8.64 (ddd, 1H), 9.13 (d, 1H).

ESI-Mass; 418 [M⁺+H]

Example 384 3-(2-Ethylpyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

13 mg of 3-(2-chloropyridin-5-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of dimethylformamide, followed by the addition of 10 mg of potassium carbonate and 2 mg of tetrakistriphenylphosphine palladium. Under stirring at room temperature in nitrogen atmosphere, triethylborane (1.0M tetrahydrofuran solution) was added dropwise thereinto, followed by heating under stirring at 100° C. for 1 hour in nitrogen atmosphere. After the reaction mixture was cooled to room temperature, water was added thereto, and extracted with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 4 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.33 (t, 3H), 2.87 (q, 2H), 7.20-7.24 (m, 2H), 7.44-7.60 (m, 5H), 7.64-7.70 (m, 1H), 7.75 (td, 1H), 8.18 (dd, 1H), 8.25 (d, 1H), 8.26 (d, 1H), 8.61 (m, 1H), 8.84 (d, 1H).

Example 385 3-(2-Chlorophenyl)-5-(4-chlorophenylthio)-1-(3-pyridyl)-1,2-dihydropyridin-2-one

The title compound was synthesized by the method similar to the method for Example 188.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23-7.50 (m, 8H), 7.52 (d, 1H), 7.55-7.58 (m, 1H), 7.72 (d, 1H), 7.86-7.93 (m, 1H), 8.66-8.76 (m, 2H).

Example 386 3-(2-Cyanophenyl)-5-(1H-benzimidazol-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

The above compound was synthesized by the method similar to the method for Example 190.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.22-7.28 (m, 2H), 7.32-7.50 (m, 7H), 7.54-7.76 (m, 4H), 8.20-8.21 (m, 1H), 8.28-8.34 (m, 1H).

ESI-Mass; 389 [M⁺+H]

Example 387 3-(2-Adamantyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

The above compound was synthesized by the method similar to the method for Example 178.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.21-2.06 (m, 12H), 2.48 (s, 2H), 3.25 (s, 1H), 7.18 (ddd, 1H), 7.33-7.52 (m, 5H), 7.54 (d, 1H), 7.72 (td, 1H), 8.09 (d, 1H), 8.11-8.13 (m, 1H), 8.60 (ddd, 1H).

Example 388 3-(2-Cyanophenyl)-5-(4-methyl-imidazo[4,5-b]pyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one

3 mg of 3-(2-cyanophenyl)-5-(1H-imidazo[4,5-c]pyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 3 ml of acetone. To the mixture was added 2 ml of methyl iodide, followed by stirring at room temperature overnight. The mixture was evaporated, and the residue was diluted with 1 ml of water. To the mixture was added 20 mg of sodium hydroxide, followed by stirring at room temperature for 4 hours. The reaction solution was extracted with ethyl acetate. The organic layer was washed with water and brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was evaporated, and the residue was purified by silica gel chromatography (NH silica) (hexane/ethyl acetate system), to give 2 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.31 (s, 3H), 7.07 (dd, 1H), 7.43-7.61 (m, 7H), 7.64 (td, 1H), 7.72 (dd, 1H), 7.76 (dd, 1H), 8.09 (d, 1H), 8.71 (d, 1H), 8.73 (d, 1H).

ESI-Mass; 404 [M⁺+H]

Example 389 3-(2-Cyanophenyl)-1-phenyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,2-dihydropyridin-2-one

31 mg of carboxylic acid, obtained by hydrolyzing 3-(2-cyanophenyl)-5-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of dichloromethane, followed by the dropwise addition of a solution of 20 mg of oxalyl chloride in dichloromethan under ice-cooling. A catalytic amount of dimethylformamide was added thereto, followed by stirring at room temperature for 1 hour in nitrogen atmosphere. The reaction solution was evaporated, and the residue was dissolved in dichloromethane. The mixture was added dropwise into a solution of 16 mg of benzamidoxime and 0.05 ml of triethylamine in toluene, under ice-cooling. After heating to room temperature, it was stirred in nitrogen atmosphere overnight. It was heated to 100° C. for 1 hour, cooled to room temperature, and then washed with water. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and 28 mg of the residue was dissolved in 10 ml of toluene, followed by heating under reflux for 5 hours. After cooling to room temperature, the solvent was evaporated, to give 24 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.40-7.66 (m, 9H), 7.68 (dd, 2H), 7.80 (dd, 1H), 8.12 (dd, 2H), 8.32 (dd, 1H), 8.52 (dd, 1H).

Example 390 3-(3-Phenyl-1,2,4-oxadiazol-5-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

The above compound was synthesized by the method similar to the method for Example 389.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.25-7.29 (m, 2H), 7.46-7.59 (m, 7H), 7.70 (d, 1H), 7.81 (td, 1H), 8.20-8.23 (m, 2H), 8.59 (d, 1H), 8.63 (ddd, 1H), 9.14 (d, 1H).

Example 391 3-(2-Cyanothiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

22 mg of 3-(2-formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 20 ml of ethanol. To the mixture were added 6.4 mg of hydroxylamine hydrochloride and 10.1 mg of sodium acetate, followed by heating at 80° C. for 3 hours. After cooling the reaction mixture to room temperature, it was poured into a saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the resulting residue (25 mg) obtained as an oxime compound was dissolved in 10 ml of dimethylformamide, followed by adding 0.02 ml of triethylamine. Under ice-cooling, 43 mg of 1,1′-carbonyldiimidazole was added thereto, followed by stirring at 60° C. for 1 hour. Then, it was cooled to room temperature, water was added thereto, and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 15 mg of the title compound as white crystals.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.23 (ddd, 1H), 7.46-7.58 (m, 5H), 7.59 (d, 1H), 7.65 (d, 1H), 7.77 (td, 1H), 7.78 (d, 1H), 8.38 (d, 1H), 8.57 (d, 1H), 8.59 (ddd, 1H).

ESI-Mass; 356 [M⁺+H]

Example 392 3-[2-(5-Oxazolyl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

13 mg of 3-(2-formylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of methanol. To the mixture were added 11 mg of tosylmethylisocyanide and 8 mg of potassium carbonate, followed by heating under reflux overnight. After the reaction solution was cooled to room temperature, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine, and then dried over anhydrous magnesium sulfate. It was filtered through NH silica gel and silica gel, and the filtrate was evaporated. The resulting precipitates were washed with ether and dried, to give 9 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.98 (s, 1H), 7.20 (ddd, 1H), 7.36-7.51 (m, 7H), 7.54 (dt, 2H), 7.72 (ddd, 2H), 7.84 (s, 1H), 8.11 (d, 1H), 8.30 (d, 1H), 8.59 (ddd, 1H).

Example 393 3-[2-(5-Oxazolyl)thiophen-3-yl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one

The title compound was synthesized by the method similar to the method for Example 392.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.14 (s, 1H), 7.16-7.76 (m, 10H), 7.82 (s, 1H), 8.16 (d, 1H), 8.29 (d, 1H), 8.58 (d, 1H).

Example 394 3-(2-Cyanophenyl)-5-(2-pyridinecarbonyl)-1-phenyl-1,2-dihydropyridin-2-one 394a α-(2-Methoxypyridin-5-yl)-2-pyridinemethanol

50 ml of a tetrahydrofuran solution containing 3.00 g of 2-methoxy-5-bromopyridine was cooled to −78° C., followed by the dropwise addition of 10 ml of n-butyl lithium (1.6M hexane solution). After the completion of the dropwise addition, 1.70 g of picoline aldehyde was immediately added thereto, followed by stirring at −78° C. for 1 hour, to return the mixture slowly to room temperature. To the mixture was added a saturated aqueous solution of ammonium chloride, and then it was extracted with ethyl acetate. The ethyl acetate layer was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the resulting residue was purified by silica gel chromatography (ethyl acetate), to give 1.53 g of the title compound as a pale yellow solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.93 (s, 3H), 5.87 (brs, 1H), 6.72 (d, 1H), 7.24 (d, 1H), 7.31-7.36 (dd, 1H), 7.55-7.59 (dd, 1H), 7.74-7.80 (dd, 1H), 8.21 (d, 1H), 8.62 (d, 1H).

394b 5-(2-Pyridinecarbonyl)-2-methoxypyridine

To a solution of 0.83 g of α-(2-methoxypyridin-5-yl)-2-pyridinemethanol in 20 ml of an acetone was added 1.70 g of activated manganese dioxide, followed by vigorously stirring at room temperature for 30 minutes. The resulting precipitates were filtered off and washed with acetone. Then, the filtrate was concentrated, to give 0.80 g of the title compound as a white solid.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 4.04 (s, 3H), 6.84 (dd, 1H), 7.48-7.54 (ddd, 1H), 7.89-7.95 (ddd, 1H), 8.09 (d, 1H), 8.36-8.40 (dd, 1H), 8.70-8.74 (m, 1H), 9.09 (d, 1H).

394c 5-(2-Pyridinecarbonyl)-1,2-dihydropyridin-2(1H)-one

0.79 g of 5-(2-pyridinecarbonyl)-2-methoxypyridine was dissolved in 5.0 ml of 48% hydrobromic acid, and the mixture was stirred at 70° C. for 30 minutes. It was ice-cooled, diluted with water and neutralized with potassium carbonate. The resulting precipitates were collected by filtration, washed with water and hexane, and dried, to give 0.51 g of the title compound as a white powder.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 6.45 (d, 1H), 7.65-7.70 (ddd, 1H), 7.95-8.00 (dd, 1H), 8.05-8.20 (m, 2H), 8.68-8.75 (m, 2H), 12.17 (brs, 1H).

394d 5-(2-Pyridinecarbonyl)-3-bromo-1,2-dihydropyridin-2(1H)-one To a solution of 0.23 g of 5-(2-pyridinecarbonyl)-1,2-dihydropyridin-2(1H)-one in 2.0 ml of dimethylformamide was added 0.21 g of N-bromosuccinimide at room temperature, followed by stirring for 1 hour. The mixture was diluted with water, and the resulting precipitates were collected by filtration, washed with water and dried, to give 0.26 g of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.67-7.71 (ddd, 1H), 7.99-8.03 (ddd, 1H), 8.04-8.08 (dd, 1H), 8.47 (d, 1H), 8.73-8.75 (m, 1H), 8.79 (brs, 1H), 12.72 (brs, 1H).

394e 5-(2-Pyridinecarbonyl)-1-phenyl-3-bromo-1,2-dihydropyridin-2-one

A suspension of 0.24 g of 5-(2-pyridinecarbonyl)-3-bromo-1,2-dihydropyridin-2(1H)-one, 0.23 g of phenylboronic acid, 0.30 g of copper acetate and 1 ml of triethylamine in 10 ml of tetrahydrofuran was stirred at room temperature overnight. To the mixture were added concentrated aqueous ammonium (3 ml), water (30 ml) and ethyl acetate (100 ml), to separate the organic layer. It was washed with water and brine, and then dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 0.21 g of the title compound as a white powder.

¹H-NMR (400 MHz, DMSO-d₆); δ (ppm) 7.50-7.60 (m, 5H), 7.64-7.68 (ddd, 1H), 8.02-8.09 (m, 1H), 8.57 (d, 1H), 8.66-8.70 (m, 1H), 9.00 (d, 1H).

394f 3-(2-Cyanophenyl)-5-(2-pyridinecarbonyl)-1-phenyl-1,2-dihydropyridin-2-one

To a mixed liquid of 200 mg of 5-(2-pyridinecarbonyl)-1-phenyl-3-bromo-1,2-dihydropyridin-2-one, 130 mg of 2-(2-cyanophenyl)-1,3,2-dioxaborinate, 400 mg of cesium carbonate and 6 ml of dimethylformamide was added 60 mg of tetrakistriphenylphosphine palladium, followed by stirring at 130° C. for 5 hours in nitrogen atmosphere. After cooling to room temperature, ethyl acetate was added thereto. The extract was washed with water and brine, and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 45 mg of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.40-7.58 (m, 8H), 7.62-7.68 (m, 1H), 7.75-7.78 (d, 1H), 7.89-7.94 (m, 1H), 8.11-8.15 (d, 1H), 8.47 (d, 1H), 8.65-8.68 (m, 1H), 9.16 (d, 1H).

Example 395 5-(2-Pyridinecarbonyl)-1-phenyl-3-phenyl-1,2-dihydropyridin-2-one

A mixed liquid of 10 mg of 5-(2-pyridinecarbonyl)-1-phenyl-3-bromo-1,2-dihydropyridin-2-one, 10 mg of phenylboronic acid, 40 mg of cesium carbonate, 6 mg of tetrakistriphenylphosphine palladium and 1 ml of dimethylformamide was stirred at 130° C. for 2 hours in nitrogen atmosphere. After cooling to room temperature, ethyl acetate was added thereto. The extract was washed with water and brine, and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 6 mg of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 7.32-7.58 (m, 8H), 7.75-7.79 (m, 2H), 7.88-7.94 (ddd, 1H), 8.09-8.13 (m, 1H), 8.42 (d, 1H), 8.63-8.66 (m, 1H), 9.01 (d, 1H).

Example 396 3-(2-Cyanophenyl)-5-(α-hydroxy-2-picolyl)-1-phenyl-1,2-dihydropyridin-2-one

To a solution of 25 mg of 3-(2-cyanophenyl)-5-(2-pyridinecarbonyl)-1-phenyl-1,2-dihydropyridin-2-one in 5 ml of methanol was added 2 mg of sodium borohydride under ice-cooling. After 30 minutes, the mixture was diluted with a saturated aqueous solution of sodium hydrogen carbonate, followed by extracting with ethyl acetate. The ethyl acetate layer was washed with water and brine, and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate), to give 15 mg of the title compound as a pale yellow powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 5.72 (brs, 1H), 7.32-7.72 (m, 13H), 7.80-7.92 (m, 1H), 8.57-8.65 (m, 1H).

Example 397 3-(2-Cyanophenyl)-5-(2-pyridin-2-yl-vinyl)-1-phenyl-1,2-dihydropyridin-2-one

A mixed liquid of 100 mg of 3-(2-cyanophenyl)-1-phenyl-5-bromo-1,2-dihydropyridin-2-one, 100 mg of 2-vinylpyridine, 6 mg of palladium acetate, 17 mg of tri-(o-tolyl)phosphine and 3 ml of triethylamine was stirred at 130° C. for 2 hours in nitrogen atmosphere. After cooling to room temperature, ethyl acetate was added thereto. The extract was washed with water and brine, and dried over magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (ethyl acetate/hexane), to give 16 mg of the title compound as a white powder.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 6.95-7.00 (d, 1H), 7.16-7.21 (m, 1H), 7.26-7.35 (m, 1H), 7.44-7.60 (m, 7H), 7.62-7.81 (m, 5H), 8.03 (d, 1H), 8.57-8.61 (m, 1H).

Example 398 3-[(2-Ethoxycarbonyl)vinylthiophen-3-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

To a solution of 7.5 mg of ethyl diethylphosphonoacetate in tetrahydrofuran was added 1.3 mg of sodium hydride in nitrogen atmosphere under ice-cooling, followed by the dropwise addition of a solution of 10 mg of 3-(2-formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one in tetrahydrofuran. After stirring the mixture at room temperature for 1 hour in nitrogen atmosphere, water was added thereto. Then, it was extracted with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate system), to give 4 mg of the title compound.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 1.28 (t, 3H), 4.21 (q, 2H), 6.34 (d, 1H), 7.19-7.23 (m, 2H), 7.34-7.41 (m, 2H), 7.43-7.56 (m, 5H), 7.74 (td, 1H), 7.88 (d, 1H), 8.00 (d, 1H), 8.30 (d, 1H), 8.58-8.60 (m, 1H).

ESI-Mass; 429 [M⁺+H]

Example 399 5-Bromo-2-methoxypyridine

5-Dibromopyridine (200 g) and 28% sodium methoxide methanol solution (1535 g) were heated under reflux for 30 minutes, followed by cooling to room temperature. The mixture was partitioned between water (1.6 L) and tert-butylmethyl ether (1.6 L). The resulting organic layer was washed with brine (1 L) for 3 times, and then dried over anhydrous MgSO₄ overnight. The dried organic layer was evaporated at 65° C., to give 160 g (96%) of the title compound as a brown oil.

¹H-NMR (400 MHz, CDCl₃); δ (ppm) 3.91 (3H, s), 6.66 (1H, d), 7.64 (1H, dd), 8.20 (1H, d).

MS: MH⁺ 188, 190

Example 400 6-Methoxy-3-pyridylboronic acid

5-Bromo-2-methoxypyridine (152 g) was dissolved in tetrahydrofuran anhydride (1520 mL) under stirring in nitrogen atmosphere, followed by cooling to −75.1° C. as bulk temperature. Under cooling and stirring, 380 mL of a 2.46 mol/L butyl lithium solution was added dropwise thereinto, followed by the dropwise addition of 192 mL of trimethoxyborane. The cooling bath was removed 30 minutes after completion of the dropwise addition, and the mixture was stirred at room temperature overnight. On the next day, 1.5 L of a 2 mol/L aqueous solution of hydrochloric acid was added thereto, followed by stirring for 1.5 hours. Then, it was neutralized with 460 mL of a 5 mol/L aqueous solution of sodium hydroxide. It was then extracted with 1 L of ethyl acetate, and the resulting aqueous layer was extracted again with 1 L of ethyl acetate. The combined organic layer was washed twice with 1 L of 10% saline water, dried over anhydrous magnesium sulfate, and then evaporated, to give 105 g (88%) of the title compound as a slightly yellowish white solid.

¹H-NMR (CDCl₃, 400 MHz): 3.83 (3H, s), 6.74 (1H, d), 7.98 (1H, dd), 8.10 (2H, s), 8.50 (1H, s).

Example 401 2-Methoxy-5-pyridin-2-yl-pyridine

6-Methoxy-3-pyridylboronic acid (105 g), 2-bromopyridine (90 g), palladium acetate (3.21 g), triphenylphosphine (15 g), potassium carbonate (237 g), 1,2-dimethoxyethane (900 mL) and water (900 mL) were heated under reflux for 5 hours and 40 minutes under stirring. After cooling the reaction solution, ethyl acetate (1 L) was added thereto to extract. The organic layer was washed with 1 L of 10% aqueous solution of ammonium chloride, 1 L of 10% aqueous ammonia and 1 L of 10% saline, and then evaporated, to give 126 g (87%) of the title compound.

¹H-NMR (CDCl₃, 400 MHz): 4.00 (3H, s), 6.85 (1H, d), 7.21-7.26 (1H, m), 7.67 (1H, d), 7.75 (1H, dt), 8.25 (1H, dd), 8.66-8.70 (1H, m), 8.74 (1H, d).

MS: MH⁺ 187

Example 402 5-Pyridin-2-yl-2(1H)-pyridone

A mixture of 2-methoxy-5-pyridin-2-yl-pyridine (550 g) and a 4 mol/L aqueous solution of hydrochloric acid (2.4 L) was heated under reflux for 3 hours. After cooling the reaction solution, and washed with tert-butylmethyl ether (2.2 L). To the aqueous layer was added 8 mol/L aqueous solution of sodium hydroxide (1.1 L) under cooling with ice-water, and then the mixture was washed twice with tert-butylmethyl ether (2.2 L). Then, it was adjusted to pH 8 with concentrated hydrochloric acid (310 ml) and 8 mol/L aqueous solution of sodium hydroxide (100 ml), followed by partitioning between 1-butanol (4.5 L) and brine (1.8 L). The aqueous layer was extracted again with 1-butanol (4.5 L), and the combined organic layer was evaporated at 45-50° C. To the resulting residue was added tert-butylmethyl ether (2.2 L), to give crystals. The resulting crystals were collected by filtration under reduced pressure and air-dried at 60° C. Then, water (1.6 L) was added thereto to dissolve under heating. Then the mixture was water-cooled, and recrystallized. The resulting crystals were collected by filtration under reduced pressure and air-dried at 60° C., to give 188 g (66%) of the title compound as grayish white crystals.

¹H-NMR (DMSO-d₆, 400 MHz): 6.42 (1H, d), 7.19-7.26 (1H, m), 7.74-7.81 (2H, m), 8.11 (1H, d), 8.17 (1H, dd), 8.52-8.55 (1H, m).

MS: MH⁺ 173

Example 403 1-Phenyl-5-pyridin-2-yl-2(1H)-pyridone

While stirring 5-Pyridin-2-yl-2(1H)-pyridone (185 g), PhB(OH)₂ (261 g), Cu(OAc)₂ (19.4 g), pyridine (173 ml) and DMF (1480 ml) at room temperature, air was blown at 2.0 L/minute therein, to initiate the reactions. Since 26% of the reactant remained unreacted 7 hours after the initiation of the reaction, flow of air was stopped to suspend the reactions. On the next day, air was blown into the solution to restart the reactions, and the reactant was consumed to 0.57% of the initial weight in 5.5 hours. The reaction solution was poured into ice-cooled 10% aqueous ammonia (7.5 L), to give MA045. The resulting precipitates were collected by filtration under reduced pressure, and washed with water (3 L). The resulting crystals were suspended into 10% aqueous ammonia (3.6 L) under stirring at room temperature for 1 hour. Then the crystals were collected by filtration under reduced pressure, and washed with water (2 L). The resulting crystals were air-dried overnight, to give 187 g (68%) of the title compound as brown crystals.

¹H-NMR (CDCl₃, 400 MHz): 6.77 (1H, d), 7.19 (1H, dd), 7.42-7.48 (3H, m), 7.49-7.55 (3H, m), 7.72 (1H, dt), 8.04 (1H, dd), 8.21 (1H, d), 8.57-8.59 (1H, m).

MS: MH⁺ 249

Example 404 3-Bromo-1-phenyl-5-pyridin-2-yl-2(1H)-pyridone

1-Phenyl-5-pyridin-2-yl-2(1H)-pyridone (186 g), N-bromosuccinimide (141.7 g) and N,N-dimethylformamide (900 ml) were stirred at room temperature. After 2.5 hr, 6.45 g of NBS was added thereto. After depletion of the reactant was confirmed, the reaction solution was poured into water (4.5 L) under ice-cooling, followed by stirring in a cold-room (approximately 4° C.) overnight. The resulting crystals were collected by filtration under reduced pressure, followed by dissolving in IPA (3.25 L) and H₂O (650 ml) under heating. After the complete dissolution was confirmed, the solution was left to cool gradually, and then ice-cooled. Then, the mixture was stirred in a cold-room overnight. The resulting crystals were collected by filtration under reduced pressure and air-dried at 60° C., to give 191 g (81%) of the title compound.

¹H-NMR (CDCl₃, 400 MHz): 7.19-7.24 (1H, m), 7.42-5.56 (6H, m), 7.74 (1H, dt), 8.19 (1H, d), 8.51 (1H, d), 8.58-8.61 (1H, m).

MS: MH⁺ 327, 329

Among the above Examples, the particularly preferable compounds include

-   3-(2-cyanophenyl)-5-(2-methylsulfonylaminophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chloro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-nitrophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-aminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-dimethylaminophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-[3-(5-methoxymethyl-2-oxazolidinon-3-yl)-phenyl]-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxycarbonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylaminocarbonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyano-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-hydroxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-cyanomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetylaminomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methylsulfonylaminomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-acetoxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylthiophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methylsulfonylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-formylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-diethylaminomethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-hydroxymethylthiophen-3-yl)-1-phenyl-1,2-dihydropyridine-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-phenyl-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1,5-diphenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-methoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3,4-dimethoxyphenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(thiophen-3-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-fluorophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(thiophen-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-furfuryl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-on, -   3-(2-methoxycarbonylphenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-fluorophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(4-methoxy-3-pyridyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-(3-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(4-fluorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-formylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-chlorophenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-tolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(thiophen-3-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-furfuryl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-tolyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-trifluoromethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(pyrimidin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-benzyloxymethylpyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-ethylthiopyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(3-methoxypyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-chloropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-fluoropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-methoxyphenyl)-1,2-dihydropyridin-2-one; -   3-phenyl-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(thiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2,6-dimethylphenyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoro-3-pyridyl)-5-(2-pyridyl)-1-(3-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-hydroxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminoethoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-chlorophenyl)-5-(2-pyridyl)-1-(3-dimethylaminopropoxyphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-hydroxymethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(4-cyanomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-cyanomethylphenyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(6-diethylaminomethyl-2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-hydroxypyridin-6-yl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-(2-aminobenzothiazol-6-yl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-benzyl-1,2,3,6-tetrahydropyridin-5-yl)-1,2-dihydropyridin-2-one; -   3-[2-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(6-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(5-methylpyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(3-hydroxypyridin-2-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-phenyl-5-(2-thiazoyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-methoxypyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   1-(4-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-(3-aminophenyl)-3-(2-cyanophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-aminotoluen-4-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(dimethylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(piperidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(pyrrolidinoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(diisoproylaminoethoxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(4-piperidinobutyl-1-oxy)phenyl]-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(4-nitrophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-phenyl-5-(2-pyridyl)-3-(2-thiazoyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-pyridyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-fluoropyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanopyridin-3-yl)-1-phenyl-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-nitrophenyl)-5-(2-pyrimidinyl)-1,2-dihydropyridin-2-one; -   3-(2-nitrophenyl)-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-formylthiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-naphthyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(1-naphthyl)-1,2-dihydropyridin-2-one; -   5-(2-aminopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   5-(2-bromopyridin-6-yl)-3-(2-cyanophenyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-morphorinopyridin-6-yl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-(3-hydroxyphenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-[3-(4-piperidyloxy)]phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-[3-(N-acetylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-1-{3-[1-(methanesulfonyl)piperidin-4-yl-oxy]phenyl}-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   1-[3-(N-methylpiperidin-4-yl-oxy)phenyl]-3-(2-cyanophenyl)-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-(6-chloro-1H-benzimidazol-2-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-(2-cyanophenyl)-5-(2-pyridyl)-1-(2-nitrotoluen-4-yl)-1,2-dihydropyridin-2-one; -   3-(2-cyanothiophen-3-yl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one; -   3-[2-(5-oxazolyl)phenyl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one; -   3-[2-(5-oxazolyl)thiophen-3-yl]-1-phenyl-5-(2-pyridyl)-1,2-dihydropyridin-2-one;     and -   3-[(2-ethoxycarbonyl)vinylthiophen-3-yl]-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one.

Example a b c 1

2

3

4

6 H

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

159

160

162

163

164

165

166

171

172

173

177

178

180

182

183

184

186

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

308

315

320

324

325

326

327

328

330

333

334

337

338

341

342

343

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

  378-A)

   378-B)

  379-A)

   379-B)

380

381

  383-A)

   383-B)

384

386

387

388

389

390

391

392

393

398

Example a b c x¹ 31

—CH₂— 158

—CH₂CH₂— 316

317

—CH₂— 318

—CH₂— 319

—CH₂— 329

—CH₂— 331

—CH₂— 332

—CH₂— 335

—CH₂— 336

—CH₂— 339

—CH₂— 340

—CH₂—

Example a b c x2 161

—C≡C— 168

169

170

174

175

176

179

187

188

—S— 223

306

310

311

312

314

321

322

323

344

346

347

348

349

382-A

382-B

Example a b c x3 181

185

224

307

309

313

345

350-A

350-B

385

—S— 394

395

396

397

Example a b c d 167

CH₃— 305

CH₃—

Test Example 1

The suppressing action of the compounds of the present invention to calcium influx into nerve cells induced by AMPA was investigated using the primary culture system of nerve cells of cerebral cortex of embryo of rat.

Culturing Conditions:

Cerebral cortex was cut out from the brain of rat of gestational 18 days and treated with trypsin and DNase to disperse the cells. The cells were flown by MEM containing 10% of serum, sown in a culture bottle and astrocytes were proliferated. The astrocytes were re-dispersed by trypsin and sown in a 96-well plate. After incubation for one week, it was confirmed that the astrocytes covered all over the bottom and then the nerve cells of cerebral cortex which was dispersed by the above method were sown thereupon. After incubation for 24 hours, the medium was changed, the incubation was carried out for one week and, after that, the medium was changed to that containing 1 μM of MK-801. Nerve cells which were incubated for not shorter than 8 to 10 days were used.

Suppressing Action to Calcium Influx into Nerve Cells Induced by AMPA

Calcium influx into the cells was measured using Fura2-AM which was a calcium-sensitive fluorescent dye. It was treated in a medium containing Fura2-AM for 1 hour, incorporated into the cells, exchanged to a Tyrode solution containing 1 μM MK-801 and stimulation was carried out using 2 μM AMPA. Change in the amount of calcium flown into the cells were measured as the change in the fluorescent intensity at the exciting wave length of 340/380 nm. Effect of the test compound was evaluated using the reaction resulted in the AMPA added to a Tyrode solution containing no compound as a control. Results are shown in Tables 1 to 3.

GYKI 52446 (LePeillet, et al., Brain Res., 571, 115, 1992) was used as a control compound. IC₅₀ of GYKI 52466 was 9.02 μM.

Test Example 2 Anticonvulsant Action Induced by AMPA

A test compound was suspended in a 0.5% methyl cellulose solution or in sesame oil and was orally administered (25 mg/kg) to male mice of ddy strain. After 30 minutes or 1 hour from the oral administration, AMPA was continuously injected (2 nmole/5 μl/minute/mouse) into lateral ventricle to induce the convulsions. The effect was judged by a time-extending action until the convulsion takes place by a continuous injection of AMPA.

Results

The compound represented by the above formula (I) according to the present invention showed an excellent anticonvulsant action. For example, the compounds of Examples 4, 7, 9, 12, 16, 32, 41, 47, 57, 61, 76, 78, 91, 126, 128, 137, 139, 164, 199, 261, 262, 264, 270 and 298 showed a significant anticonvulsant action.

Test Example 3 Occlusion Model of Midcerebral Arteries

The usefulness of the compound related to the present invention in the remedy of cerebral vascular accident acute stage was confirmed by the test below. Namely, the cerebral bloodstream of midcerebral arteries was blocked by inserting a nylon suture thread of 4-0 specification whose edge was crashed with flame, by 17 mm from the branch of internal carotid artery, through internal carotid artery from the external carotid artery of a male Sprange Dawley rat, and cerebral infarction was prepared (Zea Longa et al., Storke 20:84-91, 1989). The size of the cerebral infarction was evaluated by preparing the intersection slice of brain having a thickness of 2 mm and measuring the area of a portion which was not stained by TTC staining. The effect of the tested substance was carried out in this model by comparing the infarction nidus size between a group treated with a solvent and a group treated with the tested substance.

As a result, the compound related to the present invention revealed an excellent effect as the therapeutic agent of cerebral vascular accident acute stage.

Test Example 4 Antimethamphetamine Effect

(S)-(+)—N, α-dimethylphenetylamine (hereinafter, referred to as “methamphetamine”) was dosed intraperitoneal injection to a rat or mouse to which the tested compound was dosed, and a quantity of active movement was measured using an active movement measuring apparatus (SCANET SV-10; manufactured by TOYO Sangyo Co., Ltd.). The activity as the therapeutic agent of schizophrenia was evaluated using the hyperdynamic effect control of active movement caused by methamphetamine as an index (K. E. Vanover, Psychopharmacology 136: 123-131, 1998). The effect of the tested substance was confirmed by the control effect of a quantity of active movement accentuation in comparison with the group dosed with a solvent.

As a result, the compound related to the present invention revealed an excellent methamphetamine effect.

Test Example 5 Rigidity Model of Intercaruncle Ablatio Provocative Muscle

An animal model in which the myotony of anteroposterior limbs was provoked was prepared by electrically freezing between the upper cumulus and the lower cumulus of a rat. Myorelaxation effect was evaluated based on the effect of controlling the increase of muscle discharge which is generated when the posterior limbs in this model are moved back and forth. The effect of the tested substance was confirmed by the changes of muscle discharge amount before dosing the tested substance and muscle discharge amount after dosing it.

The compound related to the present invention revealed an excellent myorelaxation effect.

Test Example 6 Light Dark Test

A mouse is put in a dark box which is composed of two light and dark boxes which are linked by a tunnel, and items below were recorded concerning the behavior of the mouse for 5 minutes after that.

1. A time for remaining in the light and dark boxes. 2. Times by which the mouse went and came back between the light box and the dark box. 3. Times by which the mouse went until the entrance of the light box.

The antianxiety effect of the tested compound was detected as the elongation of the time remaining in the light and dark boxes, the increase of times by which the mouse went and came back between the light box and the dark box, and the increase of times by which the mouse went until the entrance of the light box, for the group dosed with a solvent (Hascoet M., Bourin M., Pharm. Biochem. Behav. 60: 645-653, 1998).

According to the present test, it was confirmed that the compound related to the present invention has an excellent antianxiety effect.

Test Example 7 Destruction model of 6-hydroxydopamine-inductive nigrostriaton

10 mg/kg of L-Dihydroxyphenylalanine (L-DOPA) (twice per day) was dosed every day in the abdomen of a rat whose one side of nigra neurocyte was destroyed by injecting 6-hydroxydopamine (6-OHDA) into nigra, therefore the increase of rotational motion to the reverse side of encephalopathy was provoked (C. Marin et al, Synapse 36 (4):267-274, 2000). After the solvent or the tested compound was dosed to the rat, influence on the provoked rotational motion was studied. The tested compound delayed the time until primitive rotational motion shows the maximum value after dosing L-DOPA, and increased the time of showing rotation which is a half or more of the maximum rotational number.

Test Example 8 Acetic Acid Writhing Method

Anguishing condition under which the lower half of rat's body was twisted, its abdomen was dented and its hind legs were extended was provoked by injecting 0.6% acetic acid saline in the abdomen of the rats. After the tested compound and the solvent were dosed, the acetic acid saline was injected in the abdomen, and analgesic effect was evaluated by comparing the times of these abnormal actions within an observation time (5 to 15 minutes after the dose of acetic acid) which occur after the dosing (Basic Pharmacology Experiment, edited by Kazuhiko Kubota, pages 45-47, Nankoh-do).

As a result, it could be confirmed that the compound related to the present invention controls the times of the abnormal actions significantly and has an excellent analgesic effect.

Test Example 9 Vomiting Model Induced by Cisplatin

A catheter for venoclysis was buried in a ferret, and the rat was postoperatively recovered. Then, vomiting reaction was provoked by injecting 10 mg/kg of cis-diaminedichloroplatinum (cisplatin) (A. Fink-Jensen et al., Neuroscience Letters 137: 173-177, 1992). Cisplatin (10 mg/kg) was injected a ferret which was preliminarily treated with the tested compound or the solvent, then the ferret was put in an observation cage, and the time (latent time) and times until the rhythmical contraction of abdomen (defined as vomiting) occurs during the observation period of 240 minutes were measured.

As a result, the compound related to the present invention reduced the latent time and the vomiting times significantly.

Test Example 10 Experimental Autoimmune Encephalomyelitis Model

Female Lewis rats (205±10 g) obtained from Charles River, Kent UK, were housed in pairs under environmentally controlled conditions (6:00 a.m.-6:00 p.m. light/dark cycle; 22-24° C.; 45-55% humidity) and allowed free access to food and water. Experimental groups consisted of 9-12 animals. Rats were immunised in each hind foot with 20-50 μl of inoculum containing 50 μg guinea pig myelin basic protein (MBP; final concentration 2 mg/ml), emulsified in Freund's complete adjuvant (CFA; Sigma, UK) containing Mycobacterium tuberculosis H37Ra (final concentration 5.5 mg/ml; Difco Laboratories, UK). Animals were weighed and monitored daily and clinical disease scored as (0) no clinical signs; (1) flaccid tail and weight loss; (2) hind limb hypotonia with further weight loss; (3) complete hind limb paralysis; (4) paraplegia and (5) death. In addition, intermediate scores were assigned to animals which showed a loss of tonicity in the distal half of the tail (score=0.5), paralysis of one hind limb (score=2.5) or complete hind limb paralysis with forelimb weakness (score=3.5). During the period of compound administration (10-16 days post immunisation; dpi) animals were scored 15 h after injection of vehicle or compound to avoid any acute effect of treatment on disease score. Compounds were dissolved/suspended in 0.5% methyl cellulose using a hand held Polytron homogeniser (PT1200; 2 min). Rats were dosed p.o. with either methyl cellulose vehicle (2.5 ml/kg) or compound at 5, 10 and 20 mg/kg.

Results: the compound of the invention is improved in view of experimental autoimmune encephalomyelitis. The compounds of Examples 7, 32, 76, 139, 164, 261, 262 and 264 are for example provided with a superior effect to the vehicle-administered group.

TABLE 1 Example IC₅₀ (μM) 1 0.8 2 1.8 3 0.3 4 0.1 5 0.6 6 9.3 7 0.1 8 0.1 9 0.03 10 0.05 11 0.06 12 0.1 13 0.2 14 0.1 15 0.05 16 0.1 17 0.7 18 0.02 19 0.08 20 0.04 21 0.03 22 0.06 23 0.2 24 0.2 25 0.03 26 0.02 27 0.05 28 0.2 29 0.1 30 0.04 31 0.1 32 0.1 33 0.7 34 3.7 35 3.1 36 1.1 37 0.7 38 6.3 39 0.3 41 0.08 42 0.2 43 0.5 44 0.3 45 0.2 46 0.4 47 0.6 48 0.04 49 0.2 52 1.1 55 0.8 56 3.2 57 0.2 58 0.1 60 1.7 61 0.2 62 3.1 63 1.1 64 2.8 65 0.6 66 2.4 67 6.5 69 0.9 70 3.1 71 0.05 72 0.7 73 1.2 74 0.2 76 0.1 77 0.02 78 1.4 79 2.6 80 0.3 81 2.7 82 0.8 84 0.9 86 1.9 87 1.2 88 0.3 90 0.7 91 0.05 92 0.05 93 1.9 94 1.5 95 0.3 96 0.06 97 0.4 98 0.6 99 0.1 100 0.4 101 0.2 102 0.02 103 0.03 104 0.2 105 0.03 106 0.07 107 0.07 108 0.03 109 0.01 110 2.0 111 0.4 112 0.6 113 1.2 114 0.6 115 0.06 116 0.2 117 0.4 118 0.1 119 1.7 120 0.2 121 0.6 123 0.2 124 0.7 126 0.3 127 0.4 128 0.07 129 2.6 130 0.9 131 3.7 132 3.1 133 0.3

TABLE 2 Example IC₅₀ (μM) 135 0.04 137 0.05 139 0.3 140 6.6 141 0.7 142 2.2 143 0.1 144 0.01 146 0.2 147 1.6 148 0.8 149 0.1 150 0.3 151 0.3 152 4.0 154 5.0 157 0.5 159 1.6 163 8.2 164 0.08 165 0.4 166 0.3 171 2.3 173 4.2 174 3.3 176 5.4 178 2.0 180 0.5 182 6.0 184 2.3 185 1.7 187 6.1 188 8.5 190 0.6 192 1.1 193 0.4 195 0.2 196 0.3 197 2.9 198 0.3 199 0.7 200 2.0 201 0.2 202 0.7 204 1.6 206 0.5 209 7.0 210 5.2 211 3.6 215 0.1 216 2.4 217 1.3 218 0.1 219 3.7 220 0.6 221 7.1 222 0.2 226 9.5 227 1.8 228 2.7 229 4.2 230 4.0 232 4.3 234 0.9 235 4.4 236 0.6 237 1.5 238 0.6 239 0.3 240 0.1 241 0.4 242 0.5 243 1.2 244 1.8 245 1.2 246 1.1 247 3.6 248 3.4 249 0.3 250 0.9 251 0.9 252 0.3 253 4.7 255 0.5 256 1.2 257 3.7 259 2.0 260 2.7 261 0.08 262 0.3 263 1.0 264 0.05 265 0.7 266 0.1 267 1.0 268 4.2 269 1.9 270 0.14 272 3.3 275 6.1 276 1.9 277 0.6 278 2.8 279 3.7 280 1.3 282 9.0 284 2.8 285 7.2 286 0.3 287 5.6 288 1.2 290 0.2 291 0.14 292 3.3 293 3.3 294 0.6 297 4.2 298 0.3 299 4.4 300 0.3

TABLE 3 Example IC₅₀ (μM) 302 0.3 303 0.9 307 2.0 308 1.6 309 4.1 313 5.9 314 4.6 315 0.08 316 2.1 317 0.6 318 3.1 319 2.0 320 2.3 321 4.0 326 0.9 327 8.0 330 0.4 333 0.3 334 0.6 337 0.7 338 0.4 341 0.2 342 1.3 342 3.2 344 4.7 346 3.7 351 3.3 352 1.6 354 1.5 355 0.2 356 2.1 358 1.4 359 2.3 360 3.1 362 3.7 365 2.7 367 0.6 371 0.6 379-B 6.4 381 0.4 382-B 2.3 385 1.1 386 3.5 387 7.0 388 2.9 390 1.0 391 0.1 392 0.1 393 0.3 394 1.4 395 0.9 398 0.2 

1. A compound represented by the following formula, a salt thereof or hydrates thereof

wherein A^(1a) and A^(3a) are the same as or different from each other and each indicates optionally substituted C₆₋₁₄ aromatic hydrocarbocyclic group or 5 to 14-membered aromatic heterocyclic group; and R indicates hydrogen atom or a halogen atom.
 2. The compound according to claim 1, a salt thereof or hydrates thereof, wherein A^(1a) and A^(3a) are the same as or different from each other and each represents optionally substituted phenyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, thienyl group, thiazolyl group, furyl group, naphthyl group, quinolyl group, isoquinolyl group, indolyl group, benzimidazolyl group, benzothiazolyl group, benzoxazolyl group, imidazopyridyl group or carbazolyl group.
 3. The compound according to claim 1, a salt thereof or hydrates thereof, wherein A^(1a) and A^(3a) are the same as or different from each other and each represents optionally substituted phenyl group, pyridyl group, pyrimidinyl group, thienyl group or furyl group.
 4. The compound according to claim 1, a salt thereof or hydrates thereof, wherein R is a hydrogen atom or bromine. 